They are all Templars as I play solo and need to self heal. That said I have all kinds including stamina heavy races. I love comparing who lives and who dies.
Yes. I make them and actively try to make them stronger by desgning better build for them
Depends on the content I want to run with a character. Some are built for efficiency and some are built for fun. I have a few gimmicky characters, but I don't play them nearly as much as my main and the handful of support guys I take on pledges when needed.
My favorite gimmick character by far is my Wood Elf leprechaun stam Warden healer, Lucky O'Shroomly. I'm really hoping stam healers get some better set selections sometime. Powerful Assault with Hircine's is the only combo I've found that really suits a stam healer.