I don't have a recommendation for aluminum two-piece, but for the money and performance, I've been extremely happy with the cross-drilled (vented?) replacement stock rotors I bought from Summit Racing for about $80ea. I get the two terms mixed up: cross-drilled or vented. Mine don't have the slots that run across the surface, only the chamfered holes through the rotors. Had them for about 8 years and put over 60,000 miles on them and had them turned three or four times. Time to replace them now--will definitely buy them again. In the Arizona summer heat, I warped the stock rotors the first two summers--enough of that. Bought the Summit rotors, never once warped when using semi-metallic pads, and I'm a heavy braker. By the way, stay AWAY from so-called "quiet stop" ceramic pads--what a joke. I boiled my brake fluid several times with them and damn-near put myself over an overpass due to loss of brake pressure. I also got RID of the treacherous PowerMaster system and replaced it with standard vacuum--excellent move. Got tired of replacing the PM accumulator bowl every other year back when they were $75/ea, now at about $200/ea. I think the AZ heat kills them too.
I know it's more than you asked for but I don't get a chance to chime in very often. The info might be helpful to others.
