Which one is better?
What other recommend PSU can I buy with this budget?
They are both terrifically reviewed PSUs. The only things that might help you decide:
1) Enermax is less consistently reliable (historically), Seasonic is more consistently reliable.
2) The PCI-E cabling on the Enermax unit is a little less than ideal, see (but this probably won't affect you):
So if you disqualify them both, which other PSU do you recommend?
I think you mis-understood. The points 1) and 2) don't correspond to the PSU 1) and 2).
I LIKE BOTH OF THEM!
I would personally put my money on the Seasonic. I know there were issues with certain Enermax's (though this model is really new and hard to tell reliability wise), but Seasonic has been consistently reliable.
I heard some good things about the Corsair TX650 V2? what do you think?
That's a good PSU too, and I think (can't remember exactly) it is based on the newer Seasonic designs. I think this is actually a design that is newer than SeaSonic M12II 620W you listed.
BUT, a quick google search suggests that the Corsair may be a little noisy under load. If that's not an issue to you, then that is a good option as well. Corsair usually is very choosey about the OEM of their power supplies (who makes it for them), and Seasonic is one of their long time partners, and so is CWT.