SS all the way, cheaper and generally better. it's just really big making M-Slicing tricky.
V-cube by a long way. I prefer the feel of it much more than the SS, the SS is too big for my hands aswell.
I think the Shengshou can be modified to improve the corner cutting and reduce lockups. The pieces do not have enough space between them (as the brilliant Dayan designs show is important for corner cutting), instead they fill up the space (and make for a heavy puzzle). I've got three of them and am going to start carving one or two of them up. I think that improving a cube is at least half the fun of speed solving.
I'm also going to repaint it so the color opposite white is black. The idea is to save the black/xxx edge pieces for the last four edges. Then I'm less likely to lose them.
By the way, it is not a completely easy cube to get back together. I'm tempted to put together a video showing how to do it quickly (as I seem to take mine apart repeatedly).
I tightened my SS7 a little, now it never pops, and still cuts corners decently. I like my SS7 far better than my V7.
I got a Shengshou a few weeks ago and really didn't like it out of the box. I'm planning to mod it and such, but I haven't had time yet. So for now I'm sticking with V7, but I think I'll like the Shengshou better once I've done a few basic mods.
Well, I haven't tried the Shengshou 7x7, but I do like my v-cube. I think I just got lucky though. I think I'm gonna need a new core though.
I own both a white V7 and a black SS7 and I use them roughly equally. So it will be close.
I have had the white V7 since July 2009 and it is very well broken in and with a half bright sticker set from Cubesmith it is great to use.
I brought the black SS7 in March 2012. I like the fact that it is cubic just like the other NxNxN cubes that I own and it feels
more natural to use. The SS7 is still using the same color sticker set that it arrived in. I plan to convert it to a half bright sticker set
in the future.
So I'll go for the SS7 just because it is cubic and feels like any other cube that I own much better.