Under my system, I believe they still are. Wizards will still prioritize INT, clerics WIL (previously Wis). I'm OK with that. But I don't think the system should encourage fighters to dump INT (ask the Navy what they think of Intelligence), Clerics to dump CHA, etc.
Under my system, why STR might still be a fighter's priority, the following fights would all be (more or less) viable:
- High STR & INT, low DEX & WIL
- High STR & DEX, low INT & WIL
- High STR & WIL, low DEX & INT
- High STR, balanced DEX, INT & WIL
I would like to see something more like that under the current system.