I mean, it's not entirely true, but how lax he can be with his secret identity and his go-to move being to take his mask off and reveal his identity...
I found I enjoyed Felicity the most when she just had a crush on and looked up to the man Oliver could be then I did when she actually hooked up with...
I don't think the "Barry in prison" arc was bad, I thought it was surprisingly solid, but the "Trial of The Flash" and how they ultimately got Barry...