I persnally like Regice the most, the Registeel, then Regirock. i chose Regice mainky because out of those I like Ice Pokemon the most, and they all start out with about the same moves and I havent looked at any of eachother's movepools yet. So I am sticking with Regice for now.

Competetively, I'd go with regice, registeel, regirock. Regice is perfect if Blissey is too old school for you. Registeel has nice balanced defenses, a great typing, but awful attacking stats. Regirock has a poor typing, ok stats ( just enough to pull of a Curse set) but other than that it isn't bad.

I was thinking about the same thing with Regice and Registeel but I wasn't really thinking too much about Regirock.

I really like Regice.(I kinda like all ice types). Registeel is also a good pokemon. But I would never have a Regirock. why? because its useless!

Regice, Registeel or Regirock? Hmm... I don't know! But my sister doesn't even think about that! That's because she has em' all!!!

They all have basically the same moves but I definitely prefer Registeel. Regirock has nice defense and Regice has good special defense, but Registeel is resistant to many more types of attacks than the others because of it's steel type and it's base stats are just the over two averaged together, so you get a nice balance with that. Registeel is by far the best one.

Each of them are clearly useful but each of them also have common weaknesses. To me it's hard to pick which one I think is the best, but I'd probably go with Regice.

I don't care much for them,especially regice because she/it is the weakest of th three when you first catch em

Eh, probably regice. He looks the coolest out of the three registooges anyway.

I choose regi ice because it can use blizzard,acient power,flash cannon,and earthquake