I like mine the best, but I'll vote for Sandslash because they're really similar.
Megapants's's's's's Qwilfish
I still think these 2 are the best though as they both are hard to counter and effectively beat team 2.
I'm going to save my vote though just invade there's a scizor repeat.
Megapants's's's's's Qwilfish
Your not really pointing out any of the flaws that Exeggutor has, first of all for Exeggutor to beat Escavalier it's going to have to predict extremely well and cannot even abuse its STAB's while Escavalier is alive due to being massive pursuit bait, Exeggutor is also easily worn down with only Giga Drain keeping it healthy. Exeggutor can't even reliably switch into Slowking because of Fire Blast and a Fighting Gem CC from Hitmonlee does around 46% which means Exeggutor would need to remain fairly healthy to prevent a Hitmonlee sweep.
I also would not compare Samurott to Scizor at all, Samurott actually does work against Team 2, Slowking cannot take a Hydro Pump + Megahorn after SR, Escavalier only needs to be worn down to 70% for it to be in range of a Hydro Pump killing it and Accelgor + Hitmonlee have no chance of taking a Hydro. While Samurott can't really switch into anything barring Iron Head from Escavalier and Surf from Slowking with no TR up there is also nothing on Team 2 that can reliably take it on.