If it gives you an idea, I've currently got 160 EDSI, and get around 0.55 HIVE a week from it.
Most of my EDSI's have come from a mix of rewards from my EDSMM miner tokens and rewards from @eds-vote. I haven't done a detailed analysis, but I think it's about a 50/50 split.
But my HP delegation to @eds-vote is over the 1000 threshold which also gets me regular upvotes on my posts in addition to the weekly EDSI drip, which is definitely worthwhile. It's a whole mini-ecosystem with each part generating rewards which can help generate more further down the chain.