Who makes the best AR-15 clones?

[TheCanuck]

Must be available to canadians. I only hear of armalite and bushmaster, any others that produce really good quality clones? I intend to get a flat top 14.5 or 16" m4 profile barreled M4 before this summer, and i need help figuring whats good.

 

[PoFF]

I had the occasion to handle and fire a couple of shots out of a Rock River Arms (Sold by Questar). It was pretty good, finish was comparable to Bushmaster and Armalite.

 

[Dustin]

I really like RRA...They make nice stuff. Mark @ Questar is great to deal with too.