Default [Q] s5 versions

I am living in mainland china,planning to buy an S5.Which version of S5 will be most supported by the xda community(G900F VS G900V and both have snapdragon 801)?Will the custom roms be mutually compatible?I can get the mainland chinese version G900V in a new unopened package here but I also can get the international version G900F online which will be activated by the seller so as it would work here in china as a result of the s5 region locking(so it won't be new)..I'm in need of some advice............