I had that same dilemma and opted for a Cartier. BUT I still longed for a J12! So I HAD to get a white J12. I wear my J12 so much that I had to get another one in black too! Follow your intuition. Im still glad I have the Tank too though. Its a totally different look and much less blingy! The only downfall is it seems everyone has one. Its not really as "special" as the J12.