cms_ Looks like your new so ill be kind. Use the search feature in the upper black bar. Search things like "best cordless" or "dewalt 20v". You will find a wealth of discussion on these exact questions and models. Its a tool forum, and these are very popular tools.
That being said you will also get "xxxxx brand has worked for me for years". meh, means that havent tried everything.
My suggestion, go to HD or wherever you have you gift cards and actually grab the tools you are looking at. Make sure the battery is in it.
Get what feels best and what features you think are important. Dewalt, Makita, Milwaukee, Hitachi, and Ridgid all make very comprable kits.