To your first point I can say that while you don't believe it, it is true mate. Not that Jon Sim, Brad Chartrand and the like don't "belong" in the NHL, it is that they are borderline 2nd and 3rd liners at best. I don't see them or any of the Kings other "energy" liners with the exception of Klatt at having even a remote shot at playing on any other teams top lines. It is a stone cold fact that he was on an "energy line" with the best player being Trent Klatt for the majority of his season (not being on a line with Klatt, but the energy line thing) and you can ask any kings fan how frustrated they were having to watch Frolov languish on the third and fourth line most nights. So again, it isn't a matter of opinion but one of fact. Ask around, look it up. Those are the facts mate. So that is what I meant when i said what I said, you are basing your opinion on a small handfull of moments of watching Frolov where I have watched each game and can tell you the facts. Believe whatever you want to though, its just that anything else isn't the truth.
As to the second part, I don't consider proven players like Heatley or Kovy as prospects anymore but more proven players but i would, without a doubt say that Frolov is in the exact same boat as Jaybo, Pitkaenen and Nash but as you stated, it is merely your opinion and since there aren't any facts that will support your opinion I can deal with that. We as humans like what we like.
I want to agree with your last point as I think that Vrbata is a solid young player and that Neds *has* the skills to be one, I just think that he (neds) is still way too much of a gamble and if he doesn't pan out that leaves you with Vrbata, a player that isn't in the same catagory as Frolov as your pan out on the deal. Not close to worth it. That said, IF both of those turn out to be solid 2nd liners then of course the deal would favour the Kings. Its just that I couldn't see why the Kings would gamble when they have such a great young player in Frolov.