I used to have the Tamron 28-200 [...] I eventually replaced it with the Sigma 28-135 which is noticeably better [...] Then I replaced *that* with a Tokina 28-70 [...]
I'd suggest you could narrow the range even more. One of my favs is the 50-50/1.4. Small, lightweight, fast and sharp. It doesn't get any better than that. ;-)
cheers, caveman
