I'd take Green over every SF in the league, except maybe Durant
(I would never take a LeBron or Carmelo, and I prefer Green over George/Batum/Gay, etc.)
I'll take Paul Pierce over Jeff Green. I guess I am just funny that way.
Others I would take over Green:
LeBron
Carmelo
Batum
Deng
Gay
George
Granger
Leonard
Parsons
World Peace
Also, in a couple years, I could see 1-4 additions(MKG, Barnes, Wiggins, Parker) to this as younger players come into the league.
Jeff Green would have to play the way he has the last 6 weeks or so, for at least a year before I could knock half those names off that list.
LeBron - I don't like LeBron, SORRY
Carmelo - I don't like Melo, NOPE
Batum -
Maybe... but Jeff/Batum are basically equals in my mind; I'd take GREEN
Deng - Don't enjoy his style of play
Gay - Massively overpaid
George -
Maybe... I'd say George/Jeff are about equals too but I like GREEN more
Granger - Injured and old
Leonard -
Maybe... I like Kawhi. I might take him... but GREEN is GREEN
Parsons - Probably not... but he's a fantastic player
World Peace - Eh. Injured, getting old, pricey... tough call but nah
MKG - Too young but maybe later
Barnes - I like his game, but would rather Green
Wiggins - Unproven
Parker - Unproven
Of course this is all opinionated and irrelevant

Don't read into it