Have you tried creatine nitrate before? I don't respond well to any other form (I've tried just about every kind), but the Nitrate seems to work wonders! I never tried Diesel, I had thought about it with all the rave reviews, but just couldn't make the mental connection to how the ingredients would produce results (placebo?). Tribulus is only good for libido, so I don't use any of those products either (married with a hyperactive child, no need for a libido anymore). I've tried Prime with the 69 protocol, and it did nothing for me.
Very little outside of PH/DS seems to give me gains (ceteris parabis), food is the main determinant for my gains (oats in particular!). Whether I'm using something or not, if I manipulate my calories and macros, that makes 90% of the difference IMO. AnaBeta seems a bit better though, a little closer to PH/DS level with gains coming more readily.