Either will be fine, just personal preference. Citraclean dilutes 1:30, Articulate 1:50, so Articulate probably works out a little cheaper. But neither is exactly dear, lol, pennies per wash.
Citraclean is ridiculously effective on heavy dirt, like this time of year. It was similar to Articulate + Lazer when I tried side by side, and that's pretty strong going!
But also a bit more aggressive so not sure about using it regularly on a waxed car.
Personally I'd just go Articulate for that. Especially if you do a bucket wash to finish anyway.
Get Cleanse for the wheels, Articulate for prewash, and Gleam for the bucket, job done.
Foam on top of Articulate and Cleanse helps, but they work fine without too.
This is it...
I'll maybe just stick to the Articulate and bucket wash as I don't fancy stripping the wax off