DeletedUser
What are you talking about? What unit is the "AA"? Are you talking about Artillery? Because Artillery is not abbreviated "AA". AA means Anti-Aircraft, and the Anti-Aircraft Vehicle doesn't show up until CE, which 3 ages past PE, so it can't be "effective" in PE or earlier. If you're talking about 5 Artillery and 3 Heavies, then you're wrong anyway. I'll take out that lineup every time with the 1+7 attack combo. Every. Time.I'm surprised no one has recommended defensive armies.
The best way to defeat the 1+7 combination is to have 5 AA and 3 heavies. Any ratio could be effective but I find that works "most" times. If the "terrain" is in your favor you will take zero losses, assuming attack and defense is with 100 boost or so. This is especially effective when the screen stretches to 1.5 ratio and man made impediments are in use, in PE.
This is also very effective if your attacker "auto-battles". The AI,will send the non-rogue unit out too far. Then your AA takes it out leaving the rogues with no unit to transition to.
In other era's, other combinations may be more effective. 8 heavy in CE, for instance.
As far as your opponent auto-battling as you suggest, only an idiot would attack like that. Any intelligent player who uses the 1+7 knows not to auto-battle if their regular unit moves first.
I can also say from experience that 8 heavy in CE is not the best defense, and will usually not win against 1 AAV + 7 Rogues. 8 CE Champions is the best defense in CE. In fact, it's the only age I've found where Champions are actually useful.
P.S.: If you are talking about Artillery, then even if the non-Rogue unit moves first, the Artillery will still hit the Rogues first if they can.