Well, I have used many different creatines.
My very first was creatine monohydrate, which didn't really give me much improvement at all, so I tried Cell-Tech Hardcore (granted, this was when I was new to bodybuilding, so bear with me). CTH didn't do much for me except make me gain more fat because of all the sugar. My strength gains didn't go up at all. I figured I could try Cellmass/NOXplode because it was a different creatine, but there was no gain whatsoever in that, so I stopped buying it. I then tried some bulk CEE, which was not the best tasting stuff in the world, but I still took it to try and gain muscle, weight, anything. Still, no avail with that. I then switched to Universal Storm which, although the first creatine that I actually noticed anything in strength, still didn't make a significant difference that I could see in any of my workouts. I then started using Animal Pump, which didn't do much except wake me up a bit; no strength gains. I tried ColdFusion EX for a bit (which truly is the only powdered suplement that gave me any real energy), but I couldn't stand the taste, and I wasn't making any gains. I recently began using Green Magnitude, which has helped me endurance-wise, but still not significantly enough that I see a major difference in gains. To be completely honest, I have actually had better gains while I'm not using any creatine, then when I'm on it. However, I know all the benefits creatine has and am still looking for one which I can use and really make some noticeable gains. I looked into Neovar recomped for a little while and I like what I see, so hopefully it can benefit me and make a difference in my workouts. Hope you consider me.
EDIT: Have been working out for about ~2.5 years.
I can upload pics, and I usually update log every day.