Flip a coin. As CATERHAM said with over 4000 posts I am starting to think gregk24 hacked your account...lol.
Really, out of the two, both are very good. The QSUD 0w20 has good specs, I would use it over QSUD 5w20 in most PC's any day of the week. Kendall has a very nice add pack...literally, flip a darn coin, you can't lose on those two.