instead of going into an empty cave, and summoning bosses like duriel, andariel, mephisto etc… how about having us run through memorable zones like we did in d2
Catacombs to get to andariel, Tal Rasha’s chamber to get to Duriel, Baals throneroom to get to baal, Chaos Sanctuary to get to diablo. Then also add racing feature, which has a timer, to see how quickly u can get to the boss and kill him, and top 3 each week win a Cosmetic or something like this. Fighting the Bosses is my least favorite part of D4 atm, just constantly spawning boss and killing over and over again is rather weak in my opinion.
What do you guys think?
I like it as it is 
Simple
run to altar press button summon normal/uber version
kill = collect loot