Eli's one of those character's who I didn't really like initially but grew to appreciate on re-reads and now he's one of my faves, it bother's me immensely that due to copyright issues he's often left out considering the team doesn't get that much spotlight to begin with so he really can't afford to be missing out.
He can be a massive jerk and is someone full of anger but I like what he brings to the group and lord if a lot that anger isn't justified considering. While he make many rash and bad decisions over the course of the run I can always understand his reasoning, Eli certainly someone not afraid to have an unpopular opinion or be the naysayer if he ultimately feels it's the right thing to do. He's also arguably the most loyal friend of the team, I always noted he was the most adamantly against sending Nate back to the future to become Kang and the last hold-out.