I believe @strengthmaster may have great opionions about this.
Me I have only tried many 2ST and Nitro machines, a few Xpload series and like most of these machines. Particularly the 2ST Pullover and the Xpload horizontal leg press - great balanced leverage on these!
As for cons I find the 2ST leg curl to have a too short an arm to really make the movement full range, but maybe that is only me?
Which series had the best pullover machine?