ATI. Enough said. The best Filipino made pistol, and the best for the price range.
The STI Spartan is nothing more than a fancified RIA because they're both made by ARMSCOR of Phillipines. The ATI is made by SAM and has much better fit & finish and more consistent quality.
I had the opportunity to examined seven ATIs and at least a dozen ARMSCOR imports (RIA, Cimmaron, High Standard, and some other names I didn't recognize). The ATIs had the most consistent quality of fit and finish. The ARMSCORs were all over the place. Some had sweet triggers, some would make you cringe. Some has nice slide/frame fit, some were looser than a two-dollars whore.
Can you dig it?