The "free stat" End "def" is not added into the def on your screen. Instead its the amount of dmg that will be taken away from initial dmg taken. Example.... a mob hits a normal person with no free stat in end for 100 dmg. Then hits another person with 50 end, which will result in 25 less dmg without including the def added on by armor and/or gear.
And dont underestimate the blockrate... by all means dont underestimate it lol. It helps a ton when fighting mobs that hit you for 400+ dmg. You block a few of those and it saves your life.
Also in pvp no stone fights I have won many of battles cause of block rate. They would miss devastate and/or their most powerful attacks (precise attack and power hit). And end up losing.

so what would be a recomended build, so far im lev 26 full end, but wanna kno if or wen i should start adding str, i was thinkin 30-45 an then end again but eh i dunno if it would make a differ

Well as everyone will agree there is no "perfect" build. But it maily has to base on preferences. Do you want to be an awesome tank? So you want to do high damage? Do you want to be good in pvp? Full endurance is the way to go if you want to be awesome party person. BUT if you can play the market and make some money and get yourself some +9 armor full str fighters can tank too. But not a lot of people can make the money.
You have the....
Full end- party person/awesome tank
Full str- awesome damage dealer
25 spr/ rest str- still awesome damage dealer w/ added crit
25 spr/ rest end- still awesome tank w/ added crit
Hybrids (mix of anything)- In my oppinion I dont really like hybrids cause it leaves to many weaknesses. I like to stick to having as few weaknesses as possible.

You said they can be killed just as fast as any build, just takes longer... How does that make any since?

Lol sorry I meant they can be killed by a mage but it takes longer >.< Didnt mean just as fast >.<

Usually full end tanks can't hold my aggro at all. When I was lvl 50ish I can pull aggro off a 60+ tank in about 5sec or less. When I hit 60 don't even talk about it, aoe = bloody massacre for me. :/ Only 2 tanks have hold my aggro so far and one of them have charms/extenders/full str build the other one have full +9 set and lvl 70+

Well in my experience there are only a few mages who I have had trouble with and that was when I was in my early 60's tanking for lvl 67+ pure int mages. But as my skills got stronger and as i perfected my timing for each particular situation there was very few or no casualties. And usually the few were by the mage attacking before I even got the mobs together.

Also your armor has nothing to do with how well you hold aggro. It depends on how much damge you do or the timing of your skills. Which Pure end have to depend mainly on the second one.

So very true.

Although the last factor is how fast you kill in an AOE.

If the mages cant kill fast enough, then there are bound to be some dead mages when they are hitting things the tanker isn't.

Yeah that is why you should only pull an amount that your dps that you have can kill fast enough or you can keep aggro with.

If you got 2 mages though you almost all the time can kill the mob before devastate is even over. With 1 mage you might need to pull less and spread your mock and devastate time even farther then usual.

To be honest I have more problems with archers then I do with mages. If they get aggro they are sticking with it.