i've played rammus for a while in dominion and i've seem a bunch of rammus as well. personally i think rammus is definitely one of the top tier in dominion. like many have mentioned, the speed is simply awesome. once in a while, i run into team that knows how to defend and reinforce their nodes, but with rammus speed, u can still tear that apart. generally if u roll to a node and neutralize it without capping it, the other will be force to send ppl to recap that node. then u roll around and neutralize another, and another. sooner or later they will have to spend ppl looking for you and u can play hide and seek with them. even if u can caught but a 3v1 gank, with ur defensive ball curl and flash u can still get away. that basically buy ur team all the time in the world to turn the game around.