Labyrinth Lord: This one strikes me as being closest to Basic/Expert D&D, with its separate, level-capped classes for demi-humans and d8-for-fighter-based HD system. Seems designed to scale up to 14th level. Haven't played it, seems solid-enough, only minor differences from its source material.
Basic Fantasy RPG: Still based off Basic/Expert, but with more stuff from other editions. Class and race are separate, and classes scale up to 20th level. Seems to have more campaign-related info than Labyrinth Lord.
I just thought it was odd that they released a whole ruleset (hard cover books & all)
when it could have been a several-page house rules document tacked onto AD&D. "Here's how to use a d20 general skill system & saving throws using AD&D classes." It could have been an optional rule included with OSRIC.
just my view on how much real "innovation" went into the ruleset.
...“whole”...must...not...comment... (^_^)

I very rarely actually "laugh out loud", but this is one of those moments. It wasn't just a grin. That actually explains a lot. And I like it when things that previously bothered me suddenly "make sense", so thanks.C&C was never meant to be innovative. It was meant to be a vehicle for publishing CZ.
...“whole”...must...not...comment... (^_^)
They wanted to publish CZ. Gygax wanted it to use a system very similar to AD&D but didn’t want to actually use AD&D. Besides, they felt using AD&D would be more of a legal risk than they were willing to take. OSRIC didn’t exist yet. (Indeed, C&C inspired OSRIC, I believe.) Heck, it was said that it was going to be as close to AD&D as legally possible.
C&C was never meant to be innovative. It was meant to be a vehicle for publishing CZ.
I wouldn't call TLG a mountain.
Anyway, my fav retro-clone is Labyrinth Lord, but I've just sneakily printed out Swords & Wizardry on my work printer and will peruse it on my way home now...
My only complaints with C&C stem from the six-save system. While it would not be difficult to reconcile them back to Fort/Reflex/Will, the six-save system struck me as a backwards step rather than forward step.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.