Here is what I usually do when I have chicken breasts. Keep in mind, I feed a huge crew almost everyday, so I always have to buy those huge packs.
First, I remove every ounce of fat. I cannot tolerate it at all. Not even tiny amounts of it.
I cut those bigger breasts in half, kinda like filleting it (easy with a sharp knife). I use the top section of each one to make breaded chicken breasts with and I use all the rest of the chicken for Italian chicken.
Breaded:
I use cheap plastic bags (it's just easier, but I wouldn't waste a Zip Lock or anything like that, I buy 1 gallon bags that close with twist ties). I guess I should add that before I do anything, I always wash the chicken (you really shouldn't skip this step). I then lightly salt and pepper both sides of the fillet (very lightly). I put flour in the bag, coat all the chicken that's to be breaded in the flour. I then empty the bag into the trash and fill it with seasoned bread crumb. I then crack an egg into a bowl (I start with 1 and sometimes I have to use a 2nd, sometimes not) and add a bit of milk to thin it out a bit. I then put the floured fillet in the egg/milk mixture, get it coated nicely, but then I hold it to allow the excess to drip off. Then I put it into the breadcrumb bag to bread it. Once that's all done, I fry it on med heat till it's golden. Flip it to get the other side golden, and remove from the pan and place on a paper towel so the oil is absorbed. It's never dry when I make it like this.
I also do the above at times but instead of doing the full fillet, I cut the chicken down into strips for chicken tenders.
Italian:
Wash the chicken and strain. At this point, my chicken is already cut into strips, but I've also cooked it as full fillets (and that's actually easier to brown then strips). I buy Kraft or Ken's Italian dressing (I have Kraft right now and just checked, it's Zesty Italian). I'll marinade it as long as I can before cooking. A few times it's been overnight, but mostly, it's only a few hours. I cook it in a pan till the chicken is almost cooked completely thru. At this point, I strain it in a colander because there is just so much water in it to cook it down and not overcook the chicken. Once it's strained, I turn the burner up quite a bit. Then I pour more dressing into the pan and watch it brown up as it starts to caramelize. I put the chicken back into the pan (and because I'm always doing a lot, I only cook half on the higher heat setting, and have to do it twice). Allow the chicken to brown up a bit, then serve.
At times, there may be pieces that are dry, but it shouldn't be too dry if you have your heat set high enough to brown the chicken pretty quickly (not so high to burn it though either).
I am not kidding you when I say, when my kids' friends know I'm making the Italian chicken, they ALL want to come for dinner. Sometimes if they can't come, they beg my kids to run them some chicken over to their house (or wherever they are). Everyone just loves it.