I agree with alot of people here

FFXI style fights but with some of the speed introduced from FFXIV

TBH reason I dont party anymore since they sped up fighting in 1.21 is because the fights dont require any skill at all its just another hurdle rather than a learning experience (which levelling should be).

People who get to lvl 50 in this new system dont know how to use their jobs properly simply because they never get to practice unless on an actual boss to which most linkshells get frustrated at you then weh hey rage quit !.

So in conclusion

Longer fights would alleviate the problem noted above and give those of us who enjoy battles another thing to enjoy. you knew in xi when u had a good tank or a good healer etc. and it was a great feeling being re invited back to parties based on your reputation for being good at your job.