agreed. and for the record, panth murders teemo, not really even a fair fight.
i think when you compare panth to a solo top like say irelia, gp, kennen, riven, rumble, nasus, etc is that each champ does certain things better than the others. If you want a tankier solo top u go with gp or nasus. enagement kennen etc etc etc.
Panth is a great solo top pick because if played correctly he pretty much shuts down a lot of solo tops. Does not mean he will get a kill off a skilled player, but their solo top will be incredibly under farmed. And if your hurting him bad enough their jungle is going to spend more time top than normal. which allows your jungle to gank and harass your bot lane which "should" have your ad carry. Which in turn gives your ad carry more farm and possibly kills, while their ad carry gets behind.
Also with his ult, he can jump into battles and turn the tides of a small enagement VERY quickly. people do not like to see a panth jumpin in on them. This makes panth unique because he can be a bit out of position for an engagement and still jump right on in to assist. Be careful how you use this, if you think an ally is going to fight but then turns and runs and you ult in to a 3 on 1 situation, you just messed up lol.
As for his late game power, i think he is pretty strong late game. He is not going to obliterate the entire enemy team like a well fed ad carry can (graves, trist, vayne, sivir), can he can focus out any of your oppents carries and make them back off from the fight. As for your teammates who ***** about you playing panth, apparently they have never seen what a good pantheon can do. Just be sure to watch your build. for gods sake dont build things like zeal and phantom dancers on him. He is not an ad carry. He is an ad assassin. treat him like one.