I'm just wondering if anybody here has any tips/suggestions of how I could make my daily walks a little more pleasant.

I have 3 dogs that all come with me. A female boxer (45 lbs), a male lab mix (65 pounds) and a male GSD (80 pounds). All are on prong collars. All know basic obedience and how to behave themselves around moderate distraction. They all know to sit when I stop, stay by my side until I release them.

Here's the problem. With a moderate/strong distraction, they feed off of each other's energy/anxiousness/frustration and lose focus. For example, if I were walking any one of them individually, an unleashed dog could could go chasing a cat across the street in front of me, and worst case scenario, I'd have to give a level 1 or 2 correction with the prong to keep the dog in line. But when all 3 of them are together, it's a whole different ball game. I can easily restrain all 3 of them, but that's very different than being able to verbally control them under this "crowded distraction".

Any suggestions/hints/tips from those of you out there with multiple dogs would be greatly appreciated.

Ryan, my suggestion is to spend more time with each dog individually. Until you have perfect control over the individual dog, you can't expect to have that much with all three at the same time.