if you get the 200mm rotor upgrade for the marzocchi that's the best brake setup of all of them. And they have compression and rebound adjustment, and a leading axle unlike the g2's (i've owned both of them). the marzocchi are a little bit longer than the g2 also
yeah they are decent forks, but they don't really compare to the zokes. They are set up kind of weird, dampening in one leg, spring in the other leg and I really don't like that the axle is in like with the forks as opposed to leading like the marzocchi
they are copies of the marzocchi forks, not the same quality though. And they are long, as of about a year ago they only made them in midsize (klx) length, might make shorter ones now though but haven't looked.
FastAce and GPX both make the short versions ...I have had both and they are ok...not zoke quality or even Japanese quality by far..but with a fluid change you can make them work okay...you get what you pay for