About two open source 32bit MCU

[John Smith]

Hi allŁş
Please give some comment on the following MCU I found on internet:

1.OpenRisc1000 @ www.opencores.org
2.LEON2 @ www.gaisler.com
or any other open source MCU

I want to make a development board to verify the MCU.
Which open MCU is better with better performance,gates,easy to use?

Thanks an Regards