In what’s shaping up to be a hot summer for Hollywood, most of the blockbusters go heavy on the testosterone. But on screens big and small, females are about to make a noisy splash too. Here’s our guess at which stars’ stars are rising the fastest — our Top Ten Girls of Summer.

10. Jillian Harris
Jillian Harris avoided Melissa Rycroft’s humiliation on The Bachelor by the simple expedient of getting dumped just before that could happen. But like Melissa on Dancing With the Stars, Jillian is riding back to triumph, on The Bachelorette. But can a girl next door from the country next door (she’s from Peace River, Canada, for Pete’s sake) make it in the dog-eat-dog world of Darwinist romance? “I don’t like hurting people and I don’t like disappointing people, ” Jillian has said. But if she doesn’t do the former with ruthless glee, all of America will be in the latter category. Will we still love this snub-nosed cutie when she’s as cold as a snub-nosed revolver?

9. Zooey Deschanel
Quirky Zooey Deschanel‘s quizzical gaze has entranced viewers and enhanced films for years, but she’s been waiting for that big bump to total stardom. She just might get it with the Sundance hit 500 Days of Summer, a romantic comedy that breaks the mold — it’s a flick where the chick wields the power and drives the guy crazy. And who better to play an elusive love interest than Zooey? Her face is a mystery wrapped in an enigma equipped with piercing blue eyes that shoot paralyzing rays of pure magic.

8. Marion Cotillard
Marion Cotillard needed something huge to capitalize on her out-of-nowhere tour de force as sozzled songbird Edith Piaf in La Vie on Rose. Indie director Abel Ferrara’s Jesus-themed 2008 ego trip Mary was emphatically not what Marion needed. But as the gal pal of gangster John Dillinger (Johnny Depp) in Michael Mann‘s opus Public Enemies, she may break out of the Gallic ghetto and into Hollywood proper. Will her feminine charm help give man’s man Mann what he needs to finally make a big-screen hit? We’re betting yes.

7. Alison Lohman
Alison Lohman was voted a Superstar of Tomorrow in 2002, but found that tomorrow is always a day away. Despite stealing hearts as con man Nicolas Cage‘s pigtailed protégé in Matchstick Men and fabulous work in Tim Burton‘s fable Big Fish, her just desserts eluded her. But horror fans will crown her the star of summer after they get a load of Sam Raimi‘s killer comeback flick Drag Me to Hell. She looks kind of like Ellen Page, whom she replaced as a girl cursed by a gypsy, and if anything Alison is more talented. Tired of torture horror? Raimi is the king of what Quentin Tarantino defined as “funny and scary — two great tastes that taste great together.” And Alison Lohman is his new queen.

6. The Real Housewives of New Jersey
Let’s get real. How real can housewives in Orange County and New York really be? No, to meet the genuine article, you’ll have to check out The Real Housewives of New Jersey, the latest in Bravo’s series of distaff reality shows. Our pick for the standout star: Caroline Manzo, a redhead with a yen for turquoise bling and a taste for family power (even when the family in question is a gaggle of housewives). We think she’s the nicest of the kaffeeklatsch, too.

5. Amy Adams
After arriving on the scene like Cinderella on a rocket sled in Enchanted, Amy Adams took a kind of fame break with fun little films (Miss Pettigrew Lives for a Day, Sunshine Cleaning) and the Important Motion Picture Doubt, a prestige-building bit of Oscar bait but a no-fun zone few multiplex fans found enchanting. You can only look so fetching frowning in a nun’s habit and furrowing worry into your forehead. People were starting to get Amy confused with Isla Fisher. But this summer belongs to Amy, reteaming with Meryl Streep in Nora Ephron‘s Julia Child movie Julie & Julia and playing aeronaut Amelia Earhart in Night at the Museum II: Battle of the Smithsonian.

4. Sandra Bullock
OK, she was great as a meanie in the issue picture Crash, but face it, Sandra Bullock hasn’t really been popular since she first flashed her gun on her gam in Miss Congeniality almost a decade ago. That’s apt to change with The Proposal, the new romantic comedy by 27 Dresses director Anne Fletcher. Sandra starts out a bitchy workaholic, but thaws in the hypercompetent arms of her overachiever assistant (Ryan Reynolds).

3. Katherine Heigl
Katherine Heigl has kind of a mean reputation lately, thanks to her ungracious Grey’s Anatomy behavior. I even heard somebody call her “Sieg Heigl,” which is just unfair. But she may win fans back with the battle-of-the-sexes comedy The Ugly Truth which pits her as a romantically luckless TV producer yoked against her will with a Neanderthal sexist (Gerard Butler) out to tell unpretty alleged truths about dames. I’m not sure a movie this high-concept will be good, but I’m told it may well be big.

2. Megan Fox
In a way, it’s ridiculous to talk about the top girls of summer, since summer at the movies is pretty much strictly for boys. That’s why we have high hopes for Megan Fox in the sequel Transformers: Revenge of the Fallen, the summer movie by boys’ boy Michael Bay. Is there a hotter hard chick out there? She’s like Angelina Jolie with less baggage and fewer diapers on hand. Rom-coms are fine, but in the summer, folks long to see things blow up real good.

1. Zoe Saldana
My Hollywood spies tell me the new Star Trek prequel makes Star Wars prequels look out of touch. And which girl is going to benefit? Zoe Saldana as the only girl in the ultimate boys’ club, the Enterprise, Lt. Uhura.

Tags: amy adams, megan fox, top ten, zoe saldana