Concept looks great, love that hairstyle.
Concept through 2011 is fine, except 2010 kid version.
2012 kid version looks fine, adult versions are decent but worse than 2008-2011 adult versions, unnecessarily so.
2016 reboot's unoriginal art style is lame in all senses, including Gwen's cuteness.
The original's adult/future version and UA's adult version are the best. I wanna see them making out