Hello Skyline....well....er....um....don'tcha think if there was a BEST system we'd all be using it? LOL. In my opinion I don't think you're going to ever find the answer to your question. One system just won't do it. You have to build your own.
It takes many methods to build the village,so to speak. Start with simple things. Upgrade your membership here to Platinum first thing so you can find out your game's Hottest digits. Then work on finding digits that are due. The Search Drawings feature here on the LP will open up a whole new world to you. Then,perhaps,you won't feel so lost in this "sea of systems". Everyone will tell you something different...but the main objective is to try and get a grip on one game at first. Concentrate on Pick 3 before moving on.
I've been at this for years and have still not completely "graduated" to Pick 4,lol. Even though I dabble it all of the games,I believe to really master anything you have to solely concentrate on it.