Any JC Steel match will be amazing because the match director is a top shooter that gets match flow and fun stages that challenge you both mentally but physically. Amazing matches. Second would be OK matches, then AZ, then CA. Not a huge fan of anything out east other than Core and K&M. They get match flow and are always well ran.
I would also highly recommend the Competition Dynamics matches (all of them) as they are way way WAY more of geared towards how good of a shooter you are, not how good you are at getting free wind calls and copying everyone or having everyone copy you. They are all field matches where under time, by yourself or in a team, you have to find the targets, range them, and shoot them. Best matches bar none IMHO.
GL!
DT