How would you match these up?

1 eotech
1 Aimpoint Comp ML
1 ACOG TA 31f

16"  Lightweight 1/7
16"  M4  1/9
16"  HBAR  1/9

Just to make it more interesting, throw in one SIR 46 and Surefire M900.  I'd love to hear opinions on how you would match these up, and finally which would be your go-to choice if you could only grab one upper  (with the possible option of stuffing a second optic in your ruck).  Thanks

Eo on the LtWt.  That's a fast sight , w/ a fast pointing upper, continue the trend.
'course you'd be slightly waisting the ability to "reach out and touch" by putting a CQB sight o the 1/7".

M2 on the 1/9 16", w/ the #46 0n that (go to/all around)

And the

ACOG on the HBar.

Or-
Put the #46 on your 1/7" LtWt. W/ your M2, gives you an adequately fast close in arm, and a reasonable ability to reach...yeah do that one, that's your all around.

enjoy them.

S2.

I'd throw the SIR, M900 and EOTech on the M4.  That way you've got a M4gery that looks like what our guys are using out there right now.

Then I'd toss the ACOG on the lightweight with the 1/7 twist.  It can use the heavier rounds that are better at long range, so that's probably the best match.