Well, I'll bite. I'm most familiar with the Falcons, so here's a couple possibilities:
If it's a front-line, well-equipped unit and it's very well-integrated with the BA assets, I'd go with
Night Gyr
Flamberge
Flamberge
Summoner
Nova
That makes for a fairly tough and extremely mobile force. The specific variants can change that, though. You can use slower Flamberges and have 4/6/4 be the norm with the others as fast flankers. Alternately, you can make a jump of 5 or 6 the norm and keep the Night Gyr back as a sort of fire support unit, although against other Clans "fire support" isn't necessarily a meaningful concept.
And then five points of APGR-toting fireproof Elementals. The Falcons do have other options there, although I'm less fond of them.
-Regular Elementals do get more SRMs, but fireproof BA is also really nice. Plasma rifles are not uncommon these days.
-APGR and Interdictor Afreets can be kinda cool too, and the jump of 4 lets them keep up, but they're sooooo fragile.
-Salamanders are also pretty fragile by Clan standards, but they're not a bad choice. Might do to mix a point or two of them with other stuff.
-Ironholds and Fironholds are awesome but really just way too slow. It doesn't help that the Falcons don't have any decent BA transports. Yes, I know about the BA Indra. I said "decent," not "slow and terrible."
If it's a less well-equipped star, and Omnis aren't the order of the day:
Jupiter
BLR-4S BattleMaster
BattleMaster C
Thunderbolt IIC
Thunderbolt IIC
If you can't carry BA, it helps if you aren't really much faster than the BA. Still, it might be a good idea to attach Afreets to this star so they have less trouble keeping up. Fluff-wise, this would be a star set up to combat-test the Thunderbolt IIC. Support them properly and they can do pretty gruesome things. The BattleMasters are fine against other 'Mechs, but they're very good against BA what with the piles of medium lasers. Oh, and the HAG on the clan version. And then a Jupiter because I like Jupiters and they kill everything super dead.