Creed - thanks for tossing the ball on this one.
Wizards - thanks for the quick reply.
Ilrahil, Celephias & Laurels second attempt

- Good input!
First off. Yes I know what I write may well be viewed as a guy afraid to loose his imba, godmode, I_WIN button, <insert random jealousy (kidding!) catchphrase of the week>, greater than all guild.
That being said - I do agree that the diversity in abilities/spells and power of said so and implicitly therein of casters need some downsides, and probably not just mana cost and the tanking of casters is interesting. Assuming that it is not the current state and that those extra armours are just a happy bonus on top of the cake right now might be a bit misplaced though.
Fighters have it easy in their continuity and easy access to a constant influx of experience and freedom of game choices once a decent set of gear is obtained (Some warriors do not even need that to get going). Casters not so much.
Some thoughts on being a caster from a powerplay/balancing point of view.
When I play I am constantly spending ressources that I later will have to allocate time to obtain. On top of the time spent to get gear. These ressources include gems, herbs, multiple kinds of leftovers and other components and potions that require collection of other ressources as well.
Also, (generally speaking! - I know there has been/might be exceptions to this) going on to get experience, which I rely on for my spells to work (guildstat is currently a major factor for most casters), along with stats (and here I need experience for 5 stats and not just 3 to function at all - see below) alone? Not a very entertaining session. I am slow and sluggish. If I want to speed it up I overexpand my ressources and then the burstspeed is simply postponing the time for more gathering of ressources - in effect the same end yield in time spent (kills and ressource gathering) & experience. So I need other players to help me if I dont want to die of boredom or burn out on ressources (generally speaking!).
With the stats.
Factor in that I need INT as a stat to be able to play at all (INT determines mana pool) but also CON & DEX to survive you fighters and trolls bashing at me, and STR to be able to carry those armours protecting my frail elf caster body, not to mention all those ressources burdening me too. My output yield (dmg inc) on INT/WIS is nowhere near the same (in some cases non existant) yield as fighters get from DEX/STR. (Imagine if casters got the same bonus on dmg output on spells from INT or WIS as your specials do with STR?

)
Now rather than having "bonk" and "not getting bonked" as my specials I have a wide range of interesting abilities at my disposal. However since I live on scarce ressources (mana & components) I actually have to think and consider when I do "bonk" and "not getting bonked" or if I want to "heal" a friend or what not.. because doing one or the other too much or too little might mean we both get "splatted".
In other words. Being a caster is alot of work and constant monitoring . It includes a good deal of micro management, and you do not have the same freedom as fighters. Does this mean that it justifies extreme imbalances or that I do not enjoy it? NOT AT ALL
What I am saying though is that I am all for making balance adjustments and factoring in more needed downsides for casters, but the continued play of a caster is already somewhat restrictive, and we certainly need a whole new set of spells if you want to take our tanking away from us. We currently do not support you in a team otherwise?. (It is what I do in a team - help with gear, heal and tank - I imagine other casters face similar scenarios?)
So we can consider less tanking for casters, and an easy way to do it would be making it a skill based system based on guilds.
OCC
Fighters - 100
Ranger style (Rangers/Vamps -half magic half fight) 80
Clerics 70
Mages 60
Layman
Fighters 50 or +10
casters 0
Basically that would mean a fighter would get the 100% of the superdupra shields protection of 200, the Ranger no layman 80 and the Ranger fighter layman 90. But the poor old Cleric only gets 70 etc.
Any thoughts?