I think I've used the Ballistix for all my previous installs. Never had a single bad RAM.
But since the Corsair Vengeance LPX is less expensive (TridentZ $85, Ballistix $75, Vengeance $70) -- I will give the Vengeance a try (if they fit under the Heatsink

) from Best Buy. Will arrive a lot sooner also.
These RAMs have lifetime warranty anyway, right?