What would be a better amp choice wiring 2 alpine 15 inch dvc 4ohm subs out of these?

Ive got 2 alpine Type-R 15 inch subs with dvc at 4ohms. They are rated for 750w rms and 2000w peak on each. I have a few amps that i have found and want to know what you would recommend out of the ones i picked, or if you want point me to another that is better:

4Ohm Setup:

http://www.sonicelectronix.com/item_12019_Alpine-M...

http://www.sonicelectronix.com/item_45518_Alpine-M...

1Ohm Setup:

http://www.sonicelectronix.com/item_44489_Hifonics...

http://www.sonicelectronix.com/item_23547_Hifonics...

This is just some i found quickly in my power rating of 1500w rms for the 2 subwoofers running from 1 amp. If running off of 2 amps would be better please let me know.