The only shells I avoid are the cheap Federal field and range shells that show up in the stores before dove season that go for $28.99 per case. They tend to be dirty and the wad stinks. Soft lead, too.
The Remington Heavy Dove loads are pretty good. I've even used them in 6 shot for pheasant in the Texas Panhandle with pretty good results.
I usually stick to Winchester Super-X in 8 shot for quail and dove in Texas. They're usually the same price as the Rem Heavy Dove where I live. I found the Winchester Texas Dove loads are essentially Super-X repackaged.
By the way, Kudos to Kudu. I always have my best luck with Winchester AA Super Sport Sporting Clay rounds. Much more consistent patterns, and I know exactly what to expect since that's what I shoot 5-stand with out of my Beretta autoloader. I shoot them if I have them with me, otherwise it's typically Super-X.
9/1 is only a couple weeks away!