Protein/Creatine 101...
Protein, as mentioned, has amino acids that help repair muscles quicker. Ideally, if working out, you want to be taking one gram of protein per pound that you weight (for example, I weigh 180lbs., Ideally I want to be taking in about 160-180 grams of protein a day). DO NOT overdue it and take more than necessary as your are just going to overwork your kidneys and that will be no fun for the future. Whey protein is pretty natural and has no side effects, it jsut helps you balance your diet throughout the day. If you are NOT working out and taking whey protein, more than likely you will become fat (no joke).
Creatine will help you produce muscle mass. Simply put, if you want to get bigger, creatine will help. Do I recommend it, yes and no...Creatine, although helpful when you take it, doesn't help much in the long run. When I took creatine, it did help me get bigger, stronger, and cut but once I came off the creatine it was noticeable over a couple of weeks that the results weren't holding up. You will lose muscle size. A couple of things to know when taking creatine, do not try to take more than 5-10 grams a day, take 5 grams or so on off mornings, and make sure you eat or take plenty of carbs when you take creatine to help break it down. Like I said, it depends what you're looking for, but I personally don't take creatine anymore and have done perfectly fine on whey protein alone.
So finally, here are my recommendations...Whey protein is an amazing way to balance your diet. If you think it tastes gross, well then you just need to find the whey protein for you. There are TONS of manufacturers and flavors. I personally LOVE Muscle Milk...they have a wide abundance of flavors, my favorite being chocolate caramel swirl. Tastes great in water, even better with milk. If you are looking to take creatine, go to GNC and buy a tub of GNC brand Creatine Burst. It gives you the dose you need along with the necessary carbs.
*This is all from personally experience and a very simple breakdown of how to get involved or why to get involved with these products