I'm waiting for the Tour 2. There are two rumors - one V-Day, the other end of March. It being imminent is more than a rumor, it is not only being hyped all over the place, but pictures have been captured of it in ordering systems and someone confirmed that they had spoken to someone at Verizon and the Verizon retail employees have been receiving training on it - which is usually a sign that a new phone is within a month or so.
My understanding is that the trackball issues with the Tour have been fixed, but if you want the trackpad (which I do), the Tour 2 may not be too far from being announced.
I would definitely hold out for the Tour 2. Physical keyboard with trackpad ... it'll be great. I do believe it'll be out within the month. I heard rumblings of March, but that would be the latest. I think it'll be worth the wait.
In answer to your question on the other devices ... Tour owners seem happy for the most part, and the Storm 2 doesn't seem to have nearly as many bugs as the S1.