That's quite a larger difference in frame size, from 260 to 370. I think it mainly depends on what setup you are going to run.
For 8-9 inch props then the Black mamba or the Blackout 360 (extension arms). For a 6045 on 4s then a Blackout 330 or Xhover 300 is probably your best bet. If 5/6 inch on 2204 or 1806, then the Mini Mamba is probably better.