Well I went with the Vengeance Pros for looks but also they are the newer versions which mean they will clock better and have better latency.
http://tinyurl.com/qclzyn4
The Corsair has slightly better timings.
I have always used Corsair and my favorite pair was my XMS2 DDR2 1066MHz 5-6-6-18 that I was able to clock to 1333MHz 4-4-4-15 while overclocking my Q6600 to 3GHz. Have been using Corsair since DDR and never had a problem with them.
BTW, Calvin rules.