Head to head
Which one will break you first?
Two fingerprints on one grid. Both are scored through your profile, so this answers the question for you rather than for the average player.
Age of Empires II: Definitive Edition is the harder of the two for you, by 3.4 points. The gap is widest on strategy, where Age of Empires II: Definitive Edition asks considerably more than Grand Theft Auto V. If you want the gentler run, start with Grand Theft Auto V.
Axis by axis, biggest gap first
GRAND THEFT AUTO V
Story missions checkpoint constantly and aim assist does most of the shooting. The spikes are the driving and the gold medal objectives, which nobody is obliged to take.
Relaxed. Failure is rare and cheap.
AGE OF EMPIRES II: DEFINITIVE EDITION
Build orders are the curve, and the campaigns teach almost none of what the game actually asks for. The hard AI does not forget its economy while it fights.
Sustained pressure. Progress is earned.