I've used myofusion and syntha-6 before. Myofusion taste great(you'll never go wrong with the taste) especially cookies & cream, has 25grams of protein per scoop(24 for probio series), good value for money(that is if you get it at a fair price). Syntha-6 taste ok but has around 22grams of protein per scoop and less serving per tub. Hydro builder, never tried it as it is a bit on the expensive side, probably because the added creatine in it. For me, it's not worth it. I'm using MusclePharm Combat powder now, bought it coz of all the hype but honestly, it's not bad at all.

do u guys take probiotics supplement for overall health?

As many people in this forum would suggest, myofusion. If u google up, serving size for hydro builder is 52g per scoop and if you compare it to other protein powder, it has the lowest amount of protein per serving, still not worth the price. If you want something that have more servings, probably you can try ON or Dymatize whey. Just my 2 cents.