I keep reading good things about the Federal HST round; haven't tried it (yet). That said, I have also read good write-ups on the Gold Dot and Golden Sabre, particularly the Bonded versions, as well as the Winchester Ranger.
I currently carry (and have for about three years) the Ranger 230 +p, because my carry .45s are 3-4" barrels, and the +p should gain back some of the velocity lost to the short barrel.
I have also bought a bunch of the Taurus TCB (Total Copper Bullet) 185gr rounds. This is the Barnes X-bullet (also used in the CorBon DPX load; I also have some of those) that is reputed to have consistent, reliable expansion in the variety of calibers in which it is offered. I still need to put a few more rounds through my carry 45s to ensure reliable function, but so far, so good.
If I were looking for 2-300 rounds to put through a semi-auto 45acp (as opposed to a box or so through a revolver) I'd be doing some shopping on-line. I buy the Ranger in 50-round boxes instead of 20-round boxes, and have bought Gold Dot that way on-line too, when all I could find locally was 20-round boxes. The Taurus stuff is available at Cheaper Than Dirt, but only in 20 round boxes--Barnes also also sells the bullet (available through Midway and probably others as well), so I may try rolling my own some day
To tell the truth, I'm not sure you can go too far wrong with any modern JHP made by a reputable manufacturer.