[awm]

I agree that this depends a lot on partnership; partner knowing what to expect for weak twos is probably more important than overall style.

Personally I tend to evaluate based on losing trick count. The rules are something like:

Favorable: normally 8 or 9 losers, something like QJTxxx xx xxx xx or KQJxx xxx xx xxx is a minimum. Five card suit very frequent, if it's a good suit.

Both NV: normally 7 or 8 losers, slightly better hand than the above. Good five card suit fairly frequent.

Both Vul: normally 6 or 7 losers, almost never five card suit. Seven card suit if too many losers or too poor suit quality for 3M.

Unfavorable: honestly, I almost never open these anymore. would be 6 losers and 6-7 cards I suppose.

Within the suit, I prefer to have at most 2 losers (so at least one of top 3 honors, if only one top honor then add the jack or good spots). For a five-card suit, usually require one loser in the suit (so KQxxx is a minimum).

I know that I'm more disciplined than a lot of people are about this, and will adopt a more free-wheeling style if that's partner's preference.