yeah, the 'jobs' in FFXIV are a lot different than FFXI. WAR is far more of a tank in FFXIV, although they can hold their own in damage as well... more how they wanted it to be like in FFXI I think. Lancer/Dragoon was my first job to 50, and I still think I like it the most. It is straight DD and can put out good numbers if set up properly. The downside is that there are some fights were close proximity fighting can be a bad thing, but in other fights it can be an amazing addition. So far I just have DRG, WAR and WHM at 50... and only DRG has 5/5 on the AF. I am hoping they change the AF quests a little in the new one... being forced to have 4 people (minimum) with you for parts is annoying (although from what I have seen, you pretty much need the bodies to accomplish what needs to be done).
I have a feeling everything I said will be moot when 2.0 comes out though... I know they plan to revamp a lot of the skills and stuff. I am definitely excited to see what they do with the game though, and hopefully can find a good balance for all the jobs.