I don't get why a grain bill with fewer malts would be easier. You crush them all up together and dump them in at the same temp, if you do a single infusion. Who cares if you have one, two or five malts? It doesn't change what you actually do. Multiple steps or decoctions is where it gets tricky.
So, go with whatever you like. You can make pretty much any style with a single infusion and batch sparge so have at it. I'd suggest finding a clone of something you like. My first AG was a Nugget Nectar clone, four malts. Next up was an American Brown, also four malts. Then a RIS, six malts. And a Schwarzbier, five malts. None harder than any of the others as they're all single infusion.
That said, your other choice is a known-good recipe. EdWort's (any style here) would suffice.