If i were you id get Aid self as it would be much more helpful for you since WP has no self heal. And as a brute you must have a self heal 
As a try for a serious answer : As a WP brute you have a high regeneration rate which affects the usefulness of a self heal negatively (as it reduces the need for it greatly). I have an EM/WP without Aid Self, but with Tough and Weave. When I find myself in need of some health after a tough fight I just leave the last minion alive and keep him stunned near me to benefit from RotC's regen boost until I am comfortable with my health again. (In fact I would even have a positive regeneration without stunning him, but it's faster that way and I am a brute after all. 
) I guess you could do the same with DB's knockdown.
If it has eyes, you can blind it, if it has blood, you can make it bleed, if it has a mouth, you can make it scream.
Tbh with my db/wp i never went with either, i took the leadership pool as there is some rather nice IOS you can slot in them.
Also imo the added resistants you get from tough isnt worth it on a wp brute and as for add self again you can regen health fast anyway but stick a numina in and watch you health fly back up.
One another note i would drop the ppp nothing worth having that will help a db/wp brute.
So far on my lvl 30 SM/WP brute I have never thought i needed aid self as i solo ruthless (giving me 4-5mobs worth of regen) and team in big teams where my regen reaches 1020% easily.
Tough on the other hand I will grab to raise my S/L resists to 50+% outside of SoW
Similarly, my elec/wp brute is going to grab tough but not aid self. Just my opinion though! Take one, if it doesnt work, well there's always respecs!
@Jaw Dropper - Toons of all levels so drop me a line!
Imaginary Inc.
Twitter me!
I'd have Web Envelope, Stimulant, Aid self and Taunt. I think Leaderships is a very nice idea.
We all have our reasons for our choices. You either find them useful or you don't. I ain't all that sharing with my reasons.
He will honor his words; he will definitely carry out his actions. What he promises he will fulfill. He does not care about his bodily self, putting his life and death aside to come forward for another's troubled besiegement. He does not boast about his ability, or shamelessly extol his own virtues. - Sima Qian.
For my 10p worth, iv tried both aid self and a tough build on my level 50 db/wp and found aid self a lot more use.
Without questioning the usefulness of Aid Self, I'd go for Tough, at the end of the day WP concept is all about taking damage and pretend it doesn't hurt.
Having had this discussion with Nightmarer yesterday I was putting tough forward and I still do. If you can take the sting out of the alpha you end up with more HP after groups than before (unless you start on maximum anyway)
Tested both on um test and I found that though Aid Self was really good it stopped me smashing things, where as tough I could ignore. I'm still not 100% sure what I'd take on a scrapper but on a brute I'd take tough.
"Well, they found my diary today.
They were appropriately appalled
at the discovery of the eight victims
They're now putting it all together.
Women wrapped in silk
with one leg missing
Eight legs, one body, silk,
spider, brilliant!"
My DB/WP Brute is now level 41, and I doubt about my last powers...
+---------------------------------------------
+ Built with SuckerPunch's Online Planner
+ http://www.cohplanner.com
+---------------------------------------------
Name: N/A
Level: 44
Archetype: Brute
Primary: Dual Blades
Secondary: Willpower
+---------------------------------------------
01 => High Pain Tolerance ==> 1xEmpty
01 => Power Slice ==> 1xEmpty
02 => Ablating Strike ==> 1xEmpty
04 => Fast Healing ==> 1xEmpty
06 => Typhoon's Edge ==> 1xEmpty
08 => Blinding Feint ==> 1xEmpty
10 => Indomitable Will ==> 1xEmpty
12 => Combat Jumping ==> 1xEmpty
14 => Super Jump ==> 1xEmpty
16 => Rise to the Challenge ==> 1xEmpty
18 => Vengeful Slice ==> 1xEmpty
20 => Quick Recovery ==> 1xEmpty
22 => Mind Over Body ==> 1xEmpty
24 => Swift ==> 1xEmpty
26 => Sweeping Strike ==> 1xEmpty
28 => Heightened Senses ==> 1xEmpty
30 => Health ==> 1xEmpty
32 => One Thousand Cuts ==> 1xEmpty
35 => Stamina ==> 1xEmpty
38 => Strength of Will ==> 1xEmpty
41 => Web Envelope ==> 1xEmpty
+---------------------------------------------
I plan take Resurgence at 49 (for concept), so I ony have to powers more to choose. What would be better for survavility? Aid Self or Tough? What is better against EB, Heroes and AV?
Also I can forget them and go on for Patron pet, of course... is it any good?
Thanks for your answers.
(Edited: Just for PvE)