I agree on the LED. I have not tried one - so no experience. At this point, I do not intend to try them. Too expensive and cannot produce the quantity of light I need at a reasonable price.
As my T-12s die, I will be replacing with T-8s. When the price of T-5s come down enough, I will rotate into them from T-8s.
If I were starting from scratch and only needed one fixture, not sure whether I would go T-8 or T-5.