I promise you this. In a couple of years, people will start looking back at FF13 and say "Honestly, that game wasn't that bad. Sure, it's not like traditional FF games but as a standalone game, it was well done".
Hopefully. I enjoyed 13 and it doesn't deserve all the flak that it got.
Quick review on the FF games I've played:
1 - Can get frustratingly hard at points because you really need to find your way around that game. No real complaints aside from spells costing an assload of money.
2 - It's FF2. As hard as you try to like it, the game is determined to kick you in the balls, especially on a first runthrough. I don't like training Josef/Ricard/Minwu/ect. just to have them die 5 minutes later. Not to mention the horrid level up system.
4 - Bores me to tears. I get to Scarmiglione and then I have to put it down.
5 - Very well done. Writing is atrocious for the most part but since when has FF had golden scripts? The idea to have all of Galuf's shit transfer over to Krile means that I can train Galuf and not lose progress.
6 - Golden. Very enjoyable final boss (can't say the same about any other game) and WoR makes up for the slowness of WoB. Pity that Ultima ruins the fun.
7 - Another game that bores me. Just can't get into it.
8 - The single worst game in the series.
9 - Another masterpiece. Legitimately fun but that card game bothers me (it's just... there. Doesn't do anything).
10 - The only game when the bosses actually made me rage-quit. Seriously. Seymour Flux can go suck it.
13 - I enjoyed it. A lot more customization exists than what meets the eye (money isn't exactly plentiful in this game until Chapter 11) and the characters are all really well balanced with the exception of Sazh (who is the best character by a mile for the first half of the game and still suffices for the second half).
That's about it. Tactics can suck my cock.