Setting up one / multiple map strategy in SSF

Hey guys,

The league's been out for just about 2 weeks now and I have completed my atlas, killed Shaper multipe times and leveled my ED Trickster to 95 with little issues. But one thing I have noticed is how difficult it is to get good results from 5-way-battles. My general approach so far was to farm up 3 Emblems and kill as many bosses as possible (usually I kill 8-12 bosses).

Now the question is: is it worth it for me to focus, say, on Burial Chambers and farm the shit out of it for Doctor cards to make another character go nuts in the Legion battles?

Or do I want to set up a different map like City Square and only run that?

Having all maps unlocked is nice, but you can't focus on a select few maps to really dig into, so I'd be happy about some thought fodder and some ideas for this.

Cheers!