Well, House is absolutely terrible at love, and Hugh Laurie has certainly had some very low points in his marriage, but he sure as hell is better at it than House is! LOL!

For me it's Greg House since whenever he enters a relationship, there's no other woman aside from the woman he loves. Once he's committed, he's committed. No question asks.

Hugh Laurie. with knobs on

I don't think we know Hugh Laurie THIS MUCH. Of course, he's been married for 20 years, has kids,..but still, do we what kind of a lover he is? So I picked Greg, because, as H.E.S said, when he enters a relationship with a woman he truly loves, there's no one else....We're not talking about the hookers!

Well who knows ?

But Hugh is perfect lol so I picked him ^^
On the other hand, I agree with HES, House is afraid of his feelings but it doesn't mean he doesn't have any. As you said, "once he's committed, he's committed".