Since you’ve got a Green, go for the Red, it’ll be less similar to yours than a Blue.
And since the Red is simulclass, it’ll already be more juicy and saturated than the Green, so I’d recommend ++ modding the Green. My buddy did it to his Green and it absolutely kills.
I had a ++ modded Red Stripe, and I think the ++ was a bit too saturated for that amp. Amazing for leads but a bit much for tight rhythm playing. It was switchable though, which made it a + only when switched off (mid knob pushed in) and less saturated.
You really can’t go wrong either way with any of them.