Two totally different types of games, I enjoyed both of them but the old school console gamer in me leans towards the 3rd-person shooter in AFE - especially the with coop/ online aspect adding another level of fun.
That being said, with FE I would have enjoyed some more story and cutscenes, it felt dry and lazy imo. Only really revealing itself through Npc dialogue.
Contrary to Descent, which had a rich and developed story, even though I didn't really care for the second half of it - with the cult and all that.