I'm assuming you've seen this
comprehensive guide to clone movements topic by
@dogwood (and
@KJ2020), but here's some info compiled from that resource.
Both are decent, reliable movements, but with differences -- aside from whether you opt for an 11X or 12X ref. Both have an approximate 45 hr power reserve.
VR3135 is a clone movement and compatible with 99% genuine parts. This movement does not have a shock setting for the escape wheel. New movements are around $80USD.
VR3235 is a hybrid, not technically a clone but looks like one on the surface. It does have a real shock setting under the fake paraflex one. Parts are not easily obtained, but a new movement is around $100USD.
I've had both movements in various reps. One VR3135 had an issue with the rotor coming off its axle and vibrated when moving rapidly. Easily fixed. Otherwise, they've served me well. Touch wood, all my VR3235 movements have been rock solid.
A different movement, but the VS3135 is the one I've had more problems with. Three of my reps with this movement have had issues, but all were fixable (new parts needed for one of them).