Those are all nice strains in my opinion, and they're diverse enough to give you a decent idea of which types of strains you enjoy smoking. From my experience, all of the hyped up strains like OG Kush, Girl Scout Cookies, Bubba Kush, Headband, Green Crack, Grandaddy Purple, Chemdawg, Blue Dream, Purple Kush, The White, Grape Ape, Sour Diesel and all of the countless others, are typically hyped up for a reason. It's because in the hands of the right grower they have the potential to be more potent and of better quality than most strains out there. Like I said before, there are thousands of strains to choose from, but not all of them produce amazing quality cannabis, even in the hands of a skilled grower. There's a whole bunch of strains out there who's genetics are widely accepted to be of better quality and higher potency than your average strain, these strains are generally known as "elites". It's fairly easy to find out which strains are considered elite, they're the strains that you see people growing and talking about over and over and over in all the forums and cannabis related websites, or the strains that have a million pictures and links that pop up in search engines. I haven't ever checked, but I'd be willing to bet that there's probably a website out there that has a comprehensive list of strains that are considered to be elite. Anyone can plant a random seed from an unknown sack and end up with average quality bud a few months later, but if you want to grow truly phenomenal bud, your going to need to get your hands on some elite genetics first. There are dozens of seed companies that produce strains that are considered elite but its up to you to do the research and find out which strains these are. Once your familiar with the dozens and dozens of genetic lineages that permeate the cannabis world, you'll have a pretty good idea at what genetic lineages are known for producing amazing quality cannabis, and by that time you'll be able to look at a strains genetics (parent plants) and have a pretty good idea of whether or not that particular strain or cross can be considered elite. Eventually you'll simply be able to look at the picture of a flowering strain and know if the genetics are on point or not. The best advise I can give you is to keep researching. Trust me when I say that if you want to be an excellent grower one day, it's literally going take 100's, even 1000's of hours of research and reading, asking question and so on. If your not the reading type, you could always attend some cannabis growing classes, but these classes are obviously only offered in the medical MMJ states and they aren't going to cover the majority of things that can be learned by reading and asking questions. What it all boils down to is this. A novice and inexperienced grower can have the most amazing genetics on the planet at his disposal, and still end up growing sub par weed. Genetics are just the foundation, it takes a skilled and knowledgable grower to bring out the full potential in ANY strain. Anyway, I hope that helps you out a little bit bro.