James Gasik
We don't talk about Pun-Pun
The note on the 1e PHB, page 25:Do you have a page number for this? I played a lot of 1E and I don't remember any ability similar to 3E cleave .... and 1E martials were OP. The closest thing I remember is getting your level number of melee attacks against enemies with less than 1 Hit Die.
Personally I am not for adding anything extra to the current fighter in terms of combat. Their combat power is already plenty and subclasses just add to that. I could see adding more to Monks, but flavor-wise fighters are right were they need to be IMO. I don't even like the weapon abilities ONE is adding.
I could see a little more variety, like an option to trade the additional attacks at level 11 and 20 for something else. Maybe a skill proficiency or expertise in a skill you already have for example.
This comes from OD&D, with the origin of this rule being found in The Strategic Review #2 (volume 1), page 3. It's also an optional rule presented in 2e.