I am starting to come to the realization that, as important as variety is to fill team comps, I just don't play much more than casters.
I thought about my gaming history, and realized that in nearly every game I have ever played, I played as a Mage.
In Morrowind, I play a Mage. In Oblivion I play a Mage. In Diablo II I played a necromancer. In Titan Quest I play as a Mage equivalent. Champions Online i play a mage-like. Hellgate: London I played a Mage-like with pets. Sword of the New World my party were all mages. In World of Warcraft I played a Mage. Anarchy Online I played a Mage with a pet. Even back when I played Maplestory and Runescape I played a Mage. Hell, even in Eve Online I flew the longest ranged ships I could find.
I guess I just like sitting back from the action and pelting things from afar or sending in my minions to do the dirty work (I really enjoyed Overlord incidentally).
This translates into my LoL play. My favorite champion in the League is also the longest ranged one (Lux). My follow up favorites are all also mages, some with "pets" of a sort. Annie, Orianna, Kennen. Supports mesh with me as well Even when I have to pick an AD carry, I pick the one with the longest base range (Caitlyn).
While I have no problems playing as the AP carry or support when playing with premades (playing these archetypes exclusively has made me quite good at them. I cannot remember the last time I didn't win my lane as any of the above listed champs.), I do encounter problems when playing with strangers. I wish more people would play ranked 5's with me, but alas, I must SoloQ instead.
When I think about it and boil it down, I realize my main problem isn't that I can only play AP carries, as I can fulfill the AD carry, support, and Tank roles just fine in a pinch.
My problem is that I don't play any junglers. Oh, I can junglemumu, but apart from that I've got nothing, and little experience in the jungle to boot.
The classic junglers like WW, Udyr, Olaf, and Nunu don't mesh with the way I enjoy playing. What I really yearn for is a Mage that can jungle with the rest of them.
Until such a champ is created (or an existing one modified to be jungle capable) I guess I will just keep laning. I will continue to envy the ability of a jungler to dictate the flow of battle in the laning phase though.