Sorry for my bad English.Because I don't use English

I've decide to buy interface in $500 Budget.
I choose 3 interfaces. I want at least 8 mic preamps and dontcare about ADAT or spdiff i/o
1. MOTU 8pre
2. PreSonus Firepod
3. Focusrite saffire pro 10 i/o
I thought I want some output enough and MOTU 8pre have just main out. I cut it from my choice.
and i dont know about Firepod and saffire.
Is anybody know ? please helpme choose it.
How about PreSonus brand? can I trust this brand
and about the Saffire? compare them?

Thank you everyone.for answer