For just going from 1-20 to get the past lives what do you guys like?

Pure sorc gets all the spells and has always worked in the past up to 20 just fine.

18/2 to pick up evasion?

Toaster build... looks fun and was considering it, but not sure if it is worth such a deep splash if only going to 20 and the TR'n.

What do you guys think?

Oh, and which savant do you like for 1-20? Fire seems an easy answer, but I'd like to hear the opinions out there.