The best of the lesser grasses are about on par with a TS/TB jolteon.
Eggys are best, then Venu/Jolt, then plume/vicky.
They all have to be at least Lv 28+ depending on attack stat.
My team I'm working on is:
Ex BS/SeB Lv 31
Ex BS/SoB Lv 30
Jolt TS/TB Lv 30
Ex BS/SoB Lv 29
Jolt TS/TB Lv28.5
Jolt TS/TB Lv 29
Bench:
Venu VW/PB LV 29
Venu VW/SoB LV 28.5
Jolt TS/D LV 30
Haven't tried yet though, haven't gotten my DPS range where I want it yet.