I've watched both and I gotta say, they're two veeeeeeeeery different shows.

Grey's Anatomy is much more of a comedy. House is a drama, period. House is much more focused on the medical stuff, Grey's is focused a lot more on the relationships and whacky situations.

To say that House is "better" than Grey's Anatomy is silly because they're not even the same kind of show. Not really.

I love Grey's Anatomy. It's fun and quirky and the relationships just suck you in. The characters are really outstanding.

House is a bit more fascinating in that, mystery "can House solve this?" sort of way. It's nowhere near as lovable as Grey's Antamoy though. And House carries the show. It's not as strong an ensemble as Grey's Anatomy which has soooo many wonderful characters, each very strong in their own right.

So yeah. Two very good shows. Two very different shows.