Sonic the Hedgehog (& Knuckles). And Soniic the Hedgehog 3 when I idk, 5? My first M rated game was Shogo:Mobile Armor division and Septerra Core. I think I was like 6 lol.
Greed/ Ling-Yao & Alphonse. In the original series Greed was my favorite. But in Botherhood I thought Ling-Yao was pretty awesome. Meaning...Greedling is a dream come true and my favorite character from Brotherhood. Alphonse is pretty cool too like how he hides cats in his armor.
Tons of Spoilers: Kamina in Gurren Lagaan even though it was his death that made Simon the man he ends up becoming. Itachi in Naruto because it's all Danzo's fault! Should've just been honest with Sasuke >_> Hughes from FMA since he was one of the most likable characters and a family man.
Huge fan of Wind Waker --love the whole sailing and exploring islands theme--but Ocarina of Time:Master's Quest is a close second. I haven't played Skyward Sword yet T_T
I really love Archers and Mages. I liked using the laguz also since they were so underpowered but couldn't level them enough for the end game. In radiant Dawn it was fun to train the supposedly "weaker" characters like Edward and Leonardo for that reason--since they end up amazing if you put your time and exp into them.
Sasuke from Naruto, since he's kinda "evil" but the good guys still love him and Tobi too since he's Hilarious And Greed from FMA... since he's Ulquiorra from Bleach since he slapped Orihime (lol jk ).
House Castle Supernatural (even though its an anime now too >_<) Burn Notice Top Gear Smallville (even though it ended) Gossip Girl () annnnnd.... idk but I'm gonna take more space Oh oh and I also like ADDDDVENTURE TIME and Regular Show , because they're funny. Never got into Gumball though.
No idea which ones you've seen already, but here goes: Fairy Tail - its like one piece, and I think it might even be better since it has so much humor and great (and numerous) fights. Its made by the guy that made Rave Master but it much better in my opinion (so if you liked Rave Master, you'll love this). Full Metal Alchemist Brotherhood - it's a really story driven anime but also has many bloody and fast paced fight scenes. Has a lot of tear jerking moments too but balances them with its humor. Has one of my favorite characters of all time in it Soul Eater - has some of the epic battles, its also really funny sometimes. The main characters a girl so its a nice change for a "shonen" manga. Darker than Black - when I first saw this it was a little confusing, but after the dub version was released, it quickly became on of my favorite shows. Its a show based on the real world but has some very interesting sci-fi elements. The main character is something of a renegade and that makes him pretty interesting. Its rated M and is harder than the others to get into, but it has some of the most well thought out battles you'll ever see. Code Geass - you'll love this one if you're a fan of either Gundam or Death Note. It has a lot of strategy and tactics involved when it comes to the actions of the main character. Theres many more I can tell you about so if you want to know any more just ask me. Cheers.
The first Full Metal Alchemist's ending ='[ ... and Brotherhood is at the point where *spoilers* (episode 60) things are starting to get too weird for me.