Team Ultron vs. Team Apocalypse

Ultron
Kang
Ultimo
Super Adaptoid
Mandarin
Baron Zemo (w/ moonstone)

Vs

Apocalypse
Mr. Sinister
Stryfe
Dark Beast
Selene
Horseman (Archangel, Sunfire, Caliban & Deathbird)

Both teams have 1 month prep and access to whatever resources that can be found on Marvel earth.

Who wins?

Depends on whether time travel during prep is allowed. Also depends on how that month is spent. If Team Apocalypse spends that time cloning the members of The Twelve and turning Apocalypse into a Celestial level being the scales could be irreversibly tipped.