First off, I object to your 'lost in an epic way' comment in the first paragraph. How would it be epic what so ever? It'd just be the boss flying about, someone approaches him, he owns them, and beckons the next opponent.
The game does, factually, have a high skill ceiling, with a very steep learning curve. That means, a lot of beginners would simply get murdered by someone with more HP, greater attack damage, and faster speed.
What it boils down to is "Oh, well, if the boss is too good at the game... oh well! I guess that we better hope that we got some more players who are better!"
And as for you insulting Grega's argument as it is, it is obvious that this game mode specifically gives the better player an extreme advantage. It gives it MOBA syndrome - the good players just completely dominate all the newbies. However, in standard TDM mode, the good players do, in fact, give a slight advantage to the team - but in turn, when the opposing team is stronger, the weaker team will get stronger more quickly, thus balancing out.
If you have a better player here, he is going to own them with a greater character in all respects, both artificially and skillfully, and even get back up to max HP. I mean, say you have B, the boss, against SP, standard player. Say the boss is good at the game - to prevent you yelling back at me "No, that wouldn't happen, because it isn't that unbalanced, and whinewhinewhine!". The boss is going to zip around the player, basic melee will do what - 20 DMG per hit? With the average 2x Basic Meleé, you're gonna get 40 HP every time B scores a hit, and with the average character HP max of about 100 or so, that means that with only 5 basic meleé hits, SP is gonna be dead, and B is going to have a HP bonus, to completely negate the 5 HP or so of damage that SP could do with a basic melee hit.
Also, you seem to be taking the direct wording of Grega's post and either grammar nazing them to make them sound stupid, or just deliberately misrepresenting them. He meant, as I'm sure you know, that this is not a RP game. Each of these characters don't represent the very 'character', they represent the play style of each character. From my experience with the game, Krillin is focused on melee, and Buu is focused on Ki attacks. When have you ever actually seen anyone Role playing on a good old server of ESF 1.2.3? No one selected Goku and started quoting him, or playing sound board clips, unless it was a planned event. Also, for the not noticing the difference between SSJ Goku and Krillin. Basically, either you're not good at this game and don't use the 'G' button, or even double tap W as Goku, heck, have you even seen the gameplay demos for ESF:Final? Take the game play videos - they dance around one another with the melee thing. You can hardly tell one from the other if you're gonna be at any sort of distance from them. There's a lot of clustering around one another. Not to mention all the dust explosions and what not, it'll be hectic as fck.
For the health regen thing, the boss will easily dispatch 20 HP in a single basic melee hit, like i mentioned before. That means that the boss can set the team back 40 seconds in one hit. Not very balanced. And then if you increase the health regen, it'll be unbalanced again. This is indeed quite the conundrum we have here, the only thing I can think of is to take away the whole hp regen feature.
Also, how would a boost in PL help anything? That would just be awful. The boss is meant to start out as SSJ. Fine. No respawns. Fine. SSJ transformations of all the SPs out there. Fine. Boost in PL? No. Because speed and HP does not revolve around PL, but rather transformation, it would boost each SP up to 80% of the boss, or there about. That almost equals a 1v1 match, and is that really balanced? Sure, the boss could hit harder, but would he be able to hit?
As for the thing about beams, as the great sage --BOT-- Skyrider puts it, "melee > beams". How many times have you seen someone use nothing but beams? Okay? How many times have you seen someone use nothing but melee? And so that proves my point.
Also, I think of ideas, but before I post them, I realize that they are indeed terrible, terrible unbalanced pieces of fck. I'm afraid that you don't do the same thing, while revising your own work.