There's no one quite like Yngwie, although some have tried. He's quite bitter that he never acheived the superstardom he thinks he deserves, but his music never did and never will appeal to the masses. Shame, because he really is a brilliant player, and his classical forays (i.e., his symphonic compositions) were quite well received by fans and classical music buffs alike.
Personally, I dig him, and the egomania just furthers his infamy, LOL!