A lot of people are talking about battle regimens and why they should be replaced by FFXI-like skillchains (or why they shouldnt be). A lot of people seem to understand the need for this replacement, but for everyone else saying that BR's are just as viable in battle or even more viable, let me spell it out for you
BATTLE. REGIMENS. ARE. BORING!
While this isn't entirely the fault of the battle regimen system itself, having an automated queue-based system with 0 timing doesn't exactly help its "fun" factor.
There are 2 more fundamental problems which apply to the entire battle system
1. TP is too easy to generate, allowing skills that require TP to be spammed almost every other second from each player, losing its importance. I can build up my TP to 3000 in 2 or 3 offensive moves (provided they hit). I'm ok with wasting my TP like this because I don't feel that making the best use of my TP is that important since it is so easy to aquire.
Solution: Lower the rate of TP gain. Make skills that use TP stronger.
2. Current skills using TP are incredibly lackluster in the sound and visual departments. To explain my point abstractly, imagine the following FFXI weaponskills being used: King's Justice, Death Blossom, Tachi: Gecko, Raging Fists, and Shark Bite (or whatever you can think of). Now imagine the following FFXIV skills being used: Puncture, Haymaker, Bloodletter, Maim, Trunksplitter (or whatever you can think of). If you imagined the FFXI weaponskills (don't forget the chains that can be made with them) as much more interesting to watch/execute, you probably got my point.
If not, maybe I'm wrong and FFXIV skills are way more fun to use!
Solution: do solution 1 first, then make FFXIV skills have visual/sounds that make them more fun to use.
I guess what I'm trying to say is that these abilities need to be more "flashy".