My votes probably look all over the place, lol! Basically, I'm not sold on the idea of universal artifacts or an artifact exchange system. While those look enticing for making things easier, they don't really make it more interesting and I like interesting. I like the idea of having the same artifacts appear in more than one event; but if done poorly I could be opposed to that as well. My thinking on that is for example:
Phoenix Artifacts: They should remain the same as last year for the next Phoenix event. That gives players more choices: evolve the new bldgs from this year's Phoenix or evolve bldgs from last year's Phoenix. Next Autumn, Zodiac artifacts remain the same as last Autumn's event again with different bldgs available this year. (Notice I only picked the 2 events where I really liked the evolving bldgs. That's because I remember those event names, lol!) It should be the same for any event that offers an evolving bldg.
I've got a bunch of evolving bldgs and a full chess set in my inventory to remove them from the crafting recipes, so I'd prefer to get these bldgs out of the already bloated crafting menu. I voted for 'gain old bldgs via quests' though I'm not sure that's the best way. A separate evolving bldg menu might make sense if the evolving bldgs can be crafted there. I could see that menu also offering artifacts for crafting (everything in that menu would be expensive to craft in my mind's eye). I did not vote for being able to get multiples of old buildings, but if they are available in a separate menu and expensive to craft, I wouldn't be opposed.
Finally, I like having the artifacts available as prizes in the FA's. I've not yet needed them myself, but have seen too many of my teammates, especially newer players with smaller cities who did need them. It made the FA more fun to know we were helping others in the FS get something they really needed. But, I haven't been enthused about any of the FA prizes since they had the mana huts, so I need something to keep me interested there, lol!