played a few games with galio and wukong today, since they're free. wukong is pretty enjoyable - i can see him doing well as an offtank/burst dps guy, especially mid game. i want to try to build him with crazy lifesteal and see what happens, and also try an AP build with him. he's so much fun to just bushdodge the snot out of the other team, because people don't realize his stealth is a clone and not him.
galio is just so much fun if your team knows anything about him. i played a game earlier where i went 5-4-40 with him, and i played a game where i went 1-7-7 with him. he's great if your lanemate knows what they're doing, and he's great in teamfights where you have an awesome initiation or the other team has limited cc, so you don't get knocked around a lot. the 5-4-40 game was against a team with three heavy AD carries, where i could build an enormous amount of damage in the two seconds that my ult was up, and then gangplank would ult and finish up. he got a pentakill and two quad kills doing that =) the 1-7-7 game we got bad pubs and just couldn't get going, but galio's e does a nice job of getting people out of fights that are hopeless.
edit: i thought it was funny in phreak's video that his first gank with skarner ended with him being annihilated by the turret on a dive when it was pretty clear he should have GTFO of there. good to know it's not just me