What is the most efficient/easiest/most worthwhile altcoin to mine at home?
I've heard about Burstcoin recently, and wonder if there are other coins that can be easily mined and have promise that you guys know about.
Depends on the available hardware. Are you only looking at Proof-of-Capacity coins? Or also ones that can be CPU-mined?
As far as which ones have "promise," that's largely speculative. (You might find some more information in the speculation subforum. You could always mine the most profitable coin for your hardware, and regularly exchange them for a different coin to hold.)