the range depends on the lab
go to
www.thryoid.about.com
seriously free t3 and free t4 ( not total) is the best way to gauge how you are feeling....
lets say for example your free t3 comes back at 2... if the range is 1.5 -5
it would show that you arent even at midpoint range and could possibly use an increase of thryoid meds dependingo n your symptoms. most people feel best when their ft3 and ft4 are at midrange or higher.
and yes most would say a tsh around a 1 is the best

xo jenn