I think you will find that the only ham band capable of international ranges will be the 10 meter band, 28 Mhz to 29.7 Mhz. The 6 meter band is also a possibility, 50 - 54 Mhz. That band is 'qwerky', sometimes active, sometimes not. The only bands higher than that one are going to be typically for 'local' stuff.
I'm not familiar with the other receivers you mentioned so can't say about them. If your primary interest is just the ham bands then I would consider one of the receivers made by the major ham manufacturers. That can get expensive very quickly, so the 'used' market is also a possibility. If money isn't a 'problem', you might look at the 'AOR' high end receivers. Sit down before looking at the prices though!

Something else to think about is that the lower the frequency, the bigger/longer the antenna. That can certainly be a stumbling point too.
Good luck.
- 'Doc