Putting a mobster on a shrink's couch isn't exactly a concept with the dew still on it. Alan Arkin counseled hit man John Cusack in Grosse Pointe Blank, and therapist Lorraine Bracco meets with made man James Gandolfini on HBO's The Sopranos. But Analyze This, a bracing blend of sass and crass from director and co-writer Harold Ramis (Groundhog Day), really nails it. No wonder - Billy Crystal's Ben Sobol, a Manhattan psychiatrist with his own share of neuroses, is treating the godfather himself.…