[Kamog]

GURPS is a great system, very flexible and comprehensive. It takes a long time to create characters (let's see... I'll put 1/2 point here to get this skill, 1 point here to get this other skill... nah, instead I'll raise this stat by 1 so that I only use 1/2 point, etc) but once the characters are created, it works well. The magic system is kind of tedious, though, with the different element-based magics with all sorts of prerequites for the higher spells.

Rifts is very strange. They combined all sorts of stuff into it that isn't very well balanced. The mega-damage weapons and armor don't make much sense. The money system was weird. If you start off a game with some weapons and ammo, and you use up a few rounds, you will never earn enough money to buy new ammo! All equipment is super expensive and you will never have more than you started off with, because you never make enough money to purchase anything. If you look through the different Palladium games, they all re-use the same equipment pictures for every book. Also, when you make your characters, you get so many skills that you end up taking all sorts of useless things just to use up the points. (Let's see, I get another 3 high school skills, but I already have everything I want: oh, whatever, I'll take pottery and basket-weaving).