So in preparation for the Vita release and the Ps3's world transfer to Vita, I found an all ocean and mushroom world. The seed is "Vita" without quotation marks. Or if you like numbers more you can use 2666624. No villages (obviously) and so far I have yet to find an abandoned mineshaft (creative world), but there is an intact End portal within a rumbling stronghold. Happy adventuring!
My computer specs:
Intel Core i5-4690K, Asrock Z97X Killer ATX Mobo, Corsair Vengeance 16GB, Hyper 212 Evo, GTX 1060, EVGA 750Watt PSU, 840 Evo 120GB SSD, 1TB WD Blue, NZXT H440 (black/red).