UB + QoT = extremely strong, bordering on OP, if not outright OP.
Sed / TB - lane Sedna mana side, TB health
(this and Rook/UB are like literally the only matchups where its acceptable to put Sedna on mana side)
Rook + QoT = ridiculously OP; that is the combo that every pro team will play. In what way is it balanced, exactly? (: It means the opponents, provided they didn't go Rook/QoT, will have no towers by level 5+, and no cit by level 10+. If you have played vs a skilled Rook+QoT, you know exactly what I mean.
Countered by Occ / TB
No end game
And yeah, it's extremely strong but that's the point: to have several strong comps with a good mixture of counter picking.
Anyway, the bottom line is the QoT combos suggested are much stronger than Occ + Sed (which I don't see as OP in 2v2; it is neat and convenient, sure enough -- but OP? hardly). I'm strongly opposed to allowing either UB+QoT, or - especially! - Rook+QoT for the tourney.
Occ/Sed would be the only legal two-general team except for Qot/Sed which no one will use.
The enemy having 1 monk (possibly CH'd anyway), compared to two monks is extremely powerful.
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Anyway, I'm going to mention that part of this may be a meta thing. How us old pros played is possibly very different than how you guys do. The amount of health stacking in old games was obscene. It's possible that you guys don't do it quite as much. This obviously changes a few of the different stronger builds (like Rook/QoT).
Or you guys are being more passive/etc. Lots of different reasons.