I had T-tops in a camaro I previously owned and I hated it! Most annoying feature in a car. I have never taken it off during my whole ownership of the car. so, t-top = scratch.
Targa is something I would consider. They look nice. I have seen Corvettes with targa and I like them.
I do like the LOOK of the convertibles but performance wise they are less rigid and heavier (due to boot). Still they are great weekend cars though. When driving alongside the mountains or rivers, you can't beat the convertible.
Coupe is the winner!