I was enjoying 4 until I got stuck in that level where I think it's France? At night and you have to find something idk, played it when it released, got stuck and never pick it up again until someone did it for me haha.
GT: Tyron3L1o "Men do not cry for themselves, but for their comrades" - Sephiroth.
Favourite Metal Gear game, for me personally, goes to MGR.
I always had a thing for games like this (DMC, Bayonetta, etc), but that's not the reason this is my favourite game, I played MGS 1, 2 and 3. The best part about this game, are the characters. Blade Wolf for example, learning about freedom and choice. Monsoon is possibly one the best bossfights I ever had, it ticked all the right boxes and gives a great challenge.
And of course Armstrong, the most "over-the-top-yet-believable" final boss. He is extremely memorable, and also provides a really fun and challenging fight.
As far as the normal Solid games go, I liked 2 best for some reason. I never took any issues with Raiden, I loved the view he provided, looking down on Snake, and his backstory was rather compelling and interesting aswell. And the massive mindf*ck in the last part of the game, still is one of the best plot devices ever.