Ah yes, the classic Wintermaul from WC3, the most ripped off map ever

Also shrew TD, solo TD, splatter TD, massacre TD, cube defense, island defense, "protect the guy", and the famous blizzard TDs. Not to mention a bucetload more.
The originals in starcraft with nothing but air units were quite fun too. I liked the matrix defense lines, brilliant design
I gotta try that when its not banned by work!