Let the hive mind of Engadget get that for you.
"I just switched to Sprint from Verizon about three months ago for the Pre. Then I went for the Hero about a week ago. Now, I miss my hardware keyboard and am thinking about switching to the Moment. I am still able to switch back to Verizon if I want and get the Droid when it arrives. Should I just trade up to the Moment when it comes out, see if I like it, and if not switch to the Droid? Or something else entirely? Help!"
Oh I'm talking the 10.5 alpha.
10.1 isn't chrome material, but to be honest to me all major browsers seem equally fast, until you actually run benchmarks and see the different numbers. the new alpha actually beats chrome at sunspider though. Of course that's just a benchmark, but even so it's likely to heat up the competition either way