If memory serves me right, you fight most of them in FFIV, pretty much all of them in V (minus some weaker ones) and a few in VI and VIII. You fight none in IX and just some optional ones in X. I remember being excited with the summons of XII, but I barely used them, which is a shame.

But hey, looks like they're gonna be a big deal in XV. GOTY.

So barely anything.

Lesser known fact,  mainly because nobody from the original development team really discuss it. 

But the guraud poly system was chosen because the ps1 didnt have enough memory to run animated backgrounds and play fmv and run detailed textured player meshes at the same time,  later games got around it by using compression of the fmv but still lacked the memory to retain full resolution meshes,  so when static backgrounds switch to fmv in ff8 for example,  the texture quality of the player models drops,  they usually do this on a wide angle to minimize the effect,  only very few sequenceses in the game dont use this trick,  mainly when the scripting can gurantee very few or singular models on screen at once. 

Even lesser known fact,  rinoah shoots dogs fom her arm during limit break because they forgot to model the arm sled attachment that was originally planned. 

By the time they caught it the disk was gold. 

Got a long way ahead of ya then. Seeing how you liked the Story of FFXIII I suggest you finish that saga. I promise you you won't be disappointed by the ending(which I think is the most amazing ending of all FFs).

Then go 8,9,10,10-2,4,5,6

So basically you haven't finished yet my top 4 of FFs^^

http://gamrconnect.vgchartz.com/thread.php?id=188872&page=1

As others have said there isn't much wrong about Final Fantasy VII, except for the materia system breaking the game if you get "too creative" and missables. Did you send Tifa to the wrong side in the crater? Say goodbye to the third copy of Mystile.

*Waits for BraLoD to permanently mess up the card minigame rules*

Those missables are nothing compared to the stuff in FFXII.

Opened the wrong random unmarked treasure chest? Say goodbye to the strongest Weapon in the game.

Triple Triad is shit anyway. Tetra Master or GTFO.

But the ending of 13-2 is pretty much the motivation for all of 13-3 so it's important. You shouldn't see them as 3 seperate games. They're just equal parts of the same massive opus :)

THE MOST CHALLENGING ASPECT OF FFVII is..............having the patience to continually watch the Knights of the Round summon over and over again (especially when playing against Ruby and Emerald Weapon)

It's just an episodic game that's a little bigger than Telltale games. What's wrong with that?