OK - so I have a new fav of the day 
Note - pacov is happy he's finding folks that he's generally good at and generally has alot of fun with.
First - I super love lux. The shame is that I can only play on a decent team and if I'm laned with a decent AD player. She's easily (imo) one of the very best early game characters. The dmg output with a slow + an AA on an AP rune build is just sick. But she's uber squishy.... that said, she can also take out 2 players mid/late without a thought. Anyway, my mid isn't good enough to keep playing her often.
And back to what I mentioned: my new fav. Gankplank. I love characters that I can go off into any lane with and thrive. For me, I currently have 2 characters that are like that where I'm comfortable anywhere: gragas and now GP. If we are just talking about straight up fun folks to play, singed and GP are in the same category for me. Because his q works with crit damage, I can harass like a mofo early or just easily sit back and farm with my q as well. He's uber squishy early, but for every CS I take with my q, I'm getting bonus gold with that - and I always start with gloves and build that into avarice on my first trip back for extra money. On my best game of the night with him, I ended the game with right around 8k more gold than anyone on the team - and I could kill any carry in 1-2 shots.
Anyway, quick build summary in case you want to try it out. Runes - I a bit of a mixed build. Armor pen/mana regen per level/magic resist per level (then way I play him, I'm generally only going to get hit at best with ranged magic early) - for quints, I have 2 Max health + 1 armor pen. I'm taking flash + tp (tp isn't recommended in most guides, but I find it to be a huge adv for how I'm playing him).
The build is fairly similar to an AD player that likes crits (imagine that) - brawlers + 2 pots. Then avarice blade + boots of speed... build those into.. actually screw it. I'm pretty much following the guide here (but I differ on masteries/runes a little) http://www.mobafire.com/league-of-legends/build/two-shotted-down-laning-amp-jungling-98960
Anyway... the playstyle is simple - immediately offer to cover top or mid before the game starts. Top is preferable as the nukes are generally less - even if you are laned vs 2. Your main goal early is a little harass if you are against 1. If you are lucky enough to get a crit early, this generally makes whoever you are fighting a little nervous. So, if I find them even a smidge squishy, I'll focus on using my q on them. Otherwise, I'm using it to last hit for the extra gold. Do not, even for a second, care if you are getting pushed back to your tower. Just relax and work the cs or smack down a quick q on the enemy. If you are f-d up or are out of mana, stick it out for a bit, but then gate home and TP back if you need to. I try to find a good balance between AAing the creeps if I'm planning on bailing or just last hitting. I find its best if I'm planning on getting out of there to do a quick push on the creeps as possible and based on who's there. Anyway, patience is all that matters. I generally wear down whoever is near me quick enough so that they don't overly push.
Anyway, by about mid game, as long as you have solid map awareness, you are easily using your ult to assist on kills or tower saves/dives. If you don't have good map awareness, his ult is completely wasted on you, imo. Anyway, you are great for team battles and the 1 or 2 you were fighting are probably a bit nervous about your dmg output, but no one else is (eg you can likely kill a carry in 3-7 hits (and you can almost always land 3 with his speed burst). His ult is AMAZING for farming large creep waves when you are elsewhere. With the high dmg output, while its still nice to have your ult for fights, you don't need it for secure kills. And with TP, you could ult a full lane full of creeps (for money) and tp to the other side to work it. Eg- you instantly are up 300-500 gold or w/e it is. Anyway, nice easy money farming from a distance.
Late game, you are a beast with this build. Most carries die with 1 or 2 shots. And you have a speed bonus and can flash if needed to instantly land those 2 (all you need is 1 AA and 1 q... that' how much dmg is output against a carry in most cases).
Anyway, I find him to be a lot of fun. And he's rough to counter early game using my playstyle. Even if you manage to get me to run to base, I'm tping right back there for the xp/gold/defence. And at least 5 min have gone by before you even have a chance of pulling that off with how I'm playing him (eg cautious early).
So, lots of fun - recommend giving him a go if you haven't and try to AD route.
