I've mostly been playing with Nelson in unusual places where that white wine note would really be interesting (i.e., dry-hopped cider). Having said that, I think it's one of the best choices of the Southern Hemisphere hops to really drive an IPA. Aside from the white wine, I still get a lot of the typical west coast hop-style citrus. If you kept Nelson to 1/3 or less of your late hops, then I think that it would pair well with all the usual suspects - Amarillo, Centennial, Cascade, Simcoe, etc., without totally taking over with the white wine.