I haven't read the thread except for a couple responses, but I basically agree with what [MENTION=1]Morrus[/MENTION] said - don't cut options, just make more "superheroic" play optional.
In
another thread I posited the idea that tiers should be done away with and Paragon Paths and Epic Destinies should become modular options for higher level play, but that the default "Core" advancement had a much shallower power curve, especially after about 10th level, with Paragon retaining a steep power curve from 11-20ish, and Epic from 21-30ish. In this approach, ability scores would still increase, but at a much lower rate or Core characters, with Paragon and Epic characters receiving further bonuses for a more "superheroic" character.
So it could be something like this:
CORE
Starting Ability Scores: 3-18 +1 or 2 for racial bonuses, for max 18-20 at level 1 (I'm still not sure I like +2 for a racial bonus)
+1 to two ability scores at level 5, 15, 25, etc (so max 19-21 for 5th, 20-22 for 15th, 21-23 for 25th, etc)
PARAGON
+1 for all ability scores at beginning of Path (typically L11), and after five levels (L16)
EPIC
+1 for all ability scores at beginning of Destiny (typically L21), and after five levels (L26)
IMMORTAL
+1 for all ability scores at beginning of Ascension (typically L31), and every five levels (L36, etc)
In other words, the Core advancement is slower, plus the Paragon, Epic, and Immortal advancements are part of modular options, so don't automatically kick in.
To put it another way, a Core elf could have a max Dex of 23 at Level 25, while a Paragon/Epic Elf could have a max Dex of 27 at level 26. The difference between a Core and Paragon character is +2 to all ability scores, while this broadens to +4 for Epic characters.
This system--Paragon and Epic as optional--allows for the best of both: modest advancement for "normal" characters but the option for more superheroic characters as well.