I think Nitro will be the best, and I also think that this will become several enthusiasts' new favorite hyper. It just looks incredible.
I think Titan follows close behind for second place. I haven't ridden Goliath, but I hope the "centrifuge" element on this one is as good as it's (near-twin) brother.
Not that Phantom's Revenge doesn't look interesting, just that I agree its too short. It will come in third place, I think. Even if the rest of the reconstruction is terrible, at least it will have its first two drops, which we already know are exceptional.
I just wish there was another Intamin hyper/giga going in somewhere this summer!
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Coasters...the best natural buzz available.