Well, this is what they always come with: Red (read:Burn). I doubt that that´s the way to go because it´s soo expected.

I worked on this (all-common-decks) a week ago and made two decks. I´ll post them here, although they are for 1-on-1 play, they may still give you some hints (copy and pasted from another forum where I posted it first):

"Metagaming is common"

4 Soul Warden
4 Ication Javelineers
4 Expendable Troops
4 Ramosian Lieutnant
4 Thermal Glider
4 Nightwind Glider

4 Runes of Protection:Red
4 Runes of Protection:Black
4 Cho-Manno´s Blessing
4 Empyrial Armour

20 Plains

Sideboard
4 Topple
4 Seal of Cleansing
4 Shield of Duty and Reason
3 Ramosian Seargeant

Explanations:
Soul Wardens are good against any sort of weenie decks, at least they buy time. The Javelineers and E. Troops provide some removal capabilities white shouldn´t have normally. Javalineers are good in killing any one drop. The mini rebel-chain can cause some mayor headaches, especially if you protect the Lieutnant with Cho-Manno´s Blessing.
The Blessing is your MVP and should be strong against most decks. Empyrial Armour should either win you the game in short order or eat a chump blocker every turn. The Runes have been discussed earlier. Their cycling means that they can´t be dead.
Sideboard: Topple is against any fatties (doh), save them to hit nastie tramplers. Seal removes opponents sideboard cards. Shield of Duty and Reason explaines itself. The Seargeants are meant to be sided in for the Runes against any non-black, non-red opponent - that is opponents without decent removal.

Analysis:
This deck should have very favourable matchups in Sligh or Suicide Black even against the better builts. You will have decent chances at winning against most other matchups but stompy could still be a problem. Don´t side out the Blessings in this matchup.


"Intelligent Red/Green non-burn"

3 Tinder Wall
3 Orcish Lumberjacks
4 Llanowar Elves
4 River Boa
3 Kird Ape
3 Scryb Sprites
3 Phyrexian Warbeast
4 Jolreal´s Centaur
4 Blastoderm

4 Rancor
4 Lightning Bolt
2 Rolling Thunder
1 Reckless Charge

10 Forest
8 Mountain

Sideboard
4 Red Elemental Blast
4 Incinerate
4 Elvish Lyrist
3 Elephant Grass

Explanations:
Llanowar Elves, Tinder Wall and Orcish Lumberjack can speed things seriously up but can also fend off opposing weenies.Kird Ape and Scryb Sprites are your first wave of attackers. River Boa, Centaur and Blasti are hard to kill. The Warbeast is early beatings and circumvents protection:from strategies as well as most direct damage.
Rancor is especially useful on the Warbeasts or Scryb Sprites and overall one of the strongest cards in this format. Rolling Thunder is either mass critter kill or finisher and can be rather huge with those Lumberjacks and Walls.
Sideboard:
Incinerates are mostly against regenerators. 6 direct damage main are enough (remember, burn is exspected). Pyroblast and Elvish Lyrist are selfexplanatory. Elephant Grass is your "I win" card against black decks and usefull against stompy or any very fast weenie decks.

Analysis:
Flexible deck that can handle just about anything. It is somewhat slower than the average deck of the field but won´t run out of steam and isn´t easily metagamed against. In fact it has built-in solutions for most metagame cards your opponents could field. Playing two colours and having artifact creatures screws most opponents anyway. In one sentence: This deck is just one step ahead. It´s only weakness is that it is not that redundant like other decks. There will be times when you just draw too expensive cards or the opposite. Me thinks, losing random matches doesn´t matter if win overall. Who cares if you go 2:1 all the day as long as you win?

Hope that helped, although it´s probably too late.