@Islandswamp Yeah, I like the changes you made in the article on mtggoldfish. Going to test it our for sure.
Deluge was nice because it can hit a wide range of stuff and clear a whole board ], while EE is a little narrower in that it kills only same CMC, but can also kill other problematic permanents besides creatures (like the thorns you had mentioned). Mainly I ran the deluge over the EE because I didn't want to spend the 50+ tickets on an EE, when deluge was pretty effective (and cheap).
Only thing I don't like about the lightning bolts you added is they don't match up well against MM, but I suppose decks with MM you would side them out. It would be a meta question on if they should be in the main deck or not. In the vintage challenge, I played against shops twice, and eldrazi twice. The hurkyl's recall's were the best card in those match ups.
If you can find space, both EE and Deluge are good. In my opinion EE is better if that's all you have because it can kill a thalia and thorn at the same time. Also if Paradoxical outcome passes a turn to you with a lot of artifact mana you can kill it all.