Until Bandai releases all the 1/60 VF-X/YF-X's Yamato/Arcadia has released so far, the most comprehensive line is the 1/60. Yamato covered SDFM, DYRL?, Macross Plus, Macross 7, Macross Zero. It's true we are missing more enemy mecha (although there's the Queadluun Rau, and the HDP Regult).
So far in 1/60 we have: VF-0, SV-51, VF-1 (what is missing, Alaska Base, Funny Chinese and Orguss Valk?), VF-4 VF-11, YF-19, YF-22, VF-19, VF-22, VF-17, Destroids (3 out of 4) and Queadluun Rau. There's the option of adding the Fan Racer and the HDP Regult.
The HM-R line is great for enemy mecha army building paired with a coupled VF's.
I'd say owing both lines is a win-win situation.