Forged wheels are stronger and lighter than cast wheels. You can also look at "rotary forged": these basically have the strength of cast wheels and the weight of forged, but much cheaper than the latter.
I wouldn't, and haven't, worry one bit about repros. I have used so many brands over the years, from Tire Rack and others, I forgot what brands I've used; normally the cheaper the better. I have run all my cars on road courses w/o a hiccup. I've never found one to be of true, or leak air either.