Generally, romantic-comedies tend to substitute silliness for wit. They're generic, bland, noticeably unrealistic junk with scenes so cheesy you can hear a muted trumpet play "Wah-wah-wah-waaa" in your head over and over again, yet not so with Johnny.
Edward Scissorhands is a beautiful fairy-tale about the pains of being a unique individual in a society of insipid, conformist, zombies who are quick to ostracize and easy to rouse into violent hatred. Ed Wood, on the other hand, isn't strictly a romantic film but does have scenes with the relationship of hack-actors and cross-dressing directors that's so intentionally campy it's both twisted and hilarious, while remaining sweet at heart. What's Eating Gilbert Grape is another film so well written and performed it comes off as a gritty, slice-of-life that's easily believable in its tender characters living harsh, unhappy circumstances. Don Juan DeMarco follows a more typical formula but in the end
A worthy, unexpected surprise you don't often see in romantic-comedies.
Benny & Joon was another romantic-comedy dealing with less-than-emotionally-stable characters who actually have to work through tough obstacles to make their relationship work. Obstacles that really do happen to people but aren't shown because the subject matter "isn't funny." Because of this "it-isn't-funny" belief, the presented problems (which drive the story) of this sort are typically trite to avoid any deep thinking in the interest of "keeping it light." Light-hearted and trite shouldn't be synonymous, in my opinion, because light-hearted is an attitude, not a subject matter. Benny & Joon is a movie that understands this principle and works with it. Aside from that, the Buster Keaton inspired antics of Johnny's character are performed to perfection, a rare case of physical comedy not being a lost art.
I'd go on to mention Chocolate but I haven't seen it. No matter, all-in-in, Johnny Depp has managed to not only take a wide array of interesting parts in unique, timeless films, he's also done romantic-comedies that, rather than making me gag, fall into the same, artistic trend that's defined his entire career. Something no other current, A-list actor can claim. He's a thespian who happened to become a huge movie-star in the process, and you can see the difference in his work.
Nate Trip