Altered Time - your #1 World of Warcraft Mage resource!

Baldur's Gate was my jam back in the day.

Personally it's Warcraft 3: Frozen Throne, all the custom games just made it even more awesome.
Diablo 2 is another classic.

I don't know if Skyrim qualifies, but I enjoyed Skyrim a lot. Sinked many hours into that game.

Depends on what you prefer for yourself. It's looking like Frost is what a lot of people think, and it is a fairly balanced spec, but if that isn't what you prefer then try something else.