What is "best" is very subjective...
It will most likely be a while before USB 3.0 hits the X58 micro-ATX form factor; if ever.
A micro-ATX H55 mobo would be more likely to have USB 3.0 than an X58 or P55.
As arkadi already stated, the highest rated X58 micro-ATX mobo on Newegg is the ASUS Rampage II GENE; but with no USB 3.0 support.
You can always get a USB 3.0 pci card...