I'm not really into semi autos but I've had several Rugers that only choked on a bad batch of my own reloads. Each of the following pistols have had thousands of rounds through apiece while never choking on quality factory ammo.

Ruger- KP90DC, SR9E, SR9c

Only counting in the hundreds of rounds but I've had several LCPs that always went bang.

If I were in some sort of contest or making a bet on which gun would keep going the longest without a hitch I'd probably go with my KP90DC. That thing will eat any 45 ACP ammo.