if you're talking about a light, subtle hopping then amarillo and centennial can be quite nice. i've never tried, but seems to me that the dank hops (columbus, chinook, apollo, etc) wouldn't work that well at all. happy to be told i'm wrong, tho!
but if you're talking about hopping it up west coast style, i'm of the opinion that unless done with a lot of care and experience the combo of phenolic belgian yeasts and citrusy american hops doesn't work. i love big IPAs, and i love belgian beers (i always have one of each on tap at all times), but the vast majority of belgian IPAs are pretty bad IMO. obviously some folks love belgo-IPAs. i'm just not one of them.