I never did get around to playing Long War, or the Enemy Within modes, I heard they are fun but was put off from things like the Meld recovery being timed etc. Might try out the expansion and mods for it next time I play it as everyone says they are good.
Apocalype is a game I really wish I could get into but the clay-like aliens and graphical style and political game of the city factions feels to different from the XCOM I'm used to, mixed with not liking the real time nature of games like that and Fallout Tactics makes it a hard sell, I know you dont "need" to play the real time mode but the turn based is less flushed out as a result. Hopefully when the open source version I heard mentioned gets done all the changes to it will make it easier to get into