Preferring DH or RO style maps is a matter of an opinion. But I have to agree that DH has some great big maps, mostly made by SchutzeSepp and not included in the official maps, like Maupertus, Gleize, Cheneux, Stavelot and Targnon. Also some of the custom tank maps are excellent with a lot of hills and hull-down positions with a lot of hedges and trees that are not like theater props.
Understandably now that there are no HTs RO2 maps are and have to be quite small, almost to the point that that it feels like DoD with ironsights.
Ps. DH maps are not gigantic. Try PR/FH2 or even Arma2 to see what is gigantic. Compared to those the current RO2 maps are miniatures.