Out of that first bunch it would be the Viper HD. The diamondback is a $200 binocular and that's about what it's worth. I had a 8x32 Terra ED and it was pretty good, build quality not so much.
If you get into the $700 range, the Tract Toric has no peer. You have to spend at least $1500 to find something better, and even then it isn't very much at all. I could tell very little difference in my Toric and SLC HD side by side, and it is better (slightly) than my Meostar HD and Conquest HD.
