I would have liked to have heard the different mixes progress as I think the latest mix is pretty much there
I really like the slightly "dirty" retro sound on the drums - it gives the song a really warm and familiar feel from the get go!
This also sets up the feel of a "live" performance, which I think suits the track perfectly
The guitar solo is absolutely perfect for the track IMHO - both the tone and phrasing
I really like the lyric and sentiment - the "too old to die young" really does jump out of the track
I would usually want the title to be the first or last line of the chorus or last line of the verse - but this phrase is so strong it jumps out even though it is in the middle of a verse, a brave choice and one that really pays off in this song, a good example of "breaking the rules" and it just "working"
The only comment about the song I would make is that I think the sections could be broken up a little more - at the moment it sounds like one long chorus (not always a bad thing!) but I think a bit more focus on the arrangement would give the track a little more space and scope to build
There are signs that you have tried to do this of this - eg the drum fills, fx being introduced for the lead vocal during the pre-chorus - but I think you could really take a scalpel to the arrangement
eg - the first verse just drums, bass, the little guitar licks & vocals - bring another guitar in for the chorus - drop one out again for a verse, bring more guitars back in for the next chorus etc. etc.
I think another texture would also help to really lift the track - eg a piano or acoustic guitar - that is playing in a higher register
There are a few spots where the doubled vocal is a bit clunky with the lead vocal but this is getting ultra niggly and not worth worrying about unless you are looking for perfection
The end section has a very "George Harrison" feel to me - a la "While My Guitar Gently Weeps"
There are also some particularly nice bass guitar runs - but they are a little lost in the mix
All in all though this is a great example of an excellent song with a good production, which has been designed to "support" the song
If this was your intention (which I believe it was) then you have hit the bullseye