This has been really interesting - each mix has their own merits.
1: This has totally changed the vibe of the song. The original intention was to have a sparse, dubby number with extended trippy guitar outro. With the added keys in the mix, and the way the guitars have been arranged, it really changes the 'bounce' of the song - and I like it! It has been cut down to a more 'poppy' three mins with no extended outro, and that really works with this style. Altogether very creative and skilful.
2: This is probably most in keeping with the original vision of the song. Nice delays on the snare and a great dubby plod all the way through. Love it. There were two bass tracks laid down, one straight to desk, which was brighter and had more of the bass' timbre, and the miked up amp track which had lots of crazy boosted eq, sounding darker and fatter. It sounds like this mix has used the former track, which I would instinctively have thought would be less apt for this style of song, but it sounds great to me in the mix. Also the vocals are lower in the mix than would expect, but again, it seems to work well with the track.
3: To my ears, this is the most stripped-back mix. From the off, the drums are very 'dry' and this gives a different feel to the other versions. I reckon that this mix has used the other bass track (the miked-up amp) and it sounds really big and fat. The combination works quite well. I think that the vocal and guitar levels have been very well considered in this track.
I'll not reveal my vote, but rest assured, it wasn't an easy choice. Well done mixers :-)