Are you saying you enjoy the forge maps in TS? They're really bad, even by Reach map standards.
For the most part they are pretty awful. There's that one map that's like Narrows, I think it's called Select. I like that one okay.
But my point is still that there aren't any other 4v4 slayer playlists with a good population. Larger player pool means quicker search times, fewer shitty connections against international hosts and less crowded maps. At the very least I can vote for non-forge maps and once the TU vs Vanilla thing is out of the way I won't have to sacrifice my vote to a shitty map just so I don't have to play Vanilla.
I like good Forge maps. I can always enjoy a match on Select or MLG The Pit and even Asylum is quite fun. It's just that the playlist is filled with shitty Forge maps which become even worse when you add stuff like Jetpack and Armor Lock in the mix. And then you've got AR starts to top it all off.
I agree with you but I'm not about to start playing MLG and lately Squad player has been pretty awful. Playing against teams of Inheritors in Squad Slayer has become pretty frequent and it has a tiny population so shitty connections are more likely. And 5v5 tends to get a bit crowded on maps made for 4v4 like Zealot.