It is really interesting question for me... you know, I prefer novomatic (I love books of ra), igrosoft and playtech... But, I guess, most of all, I play playtech slots because they are very dynamic, it is very important for me when I play them on ..<snip>... for fun. But to play for real money I prefer novomatic, they are more freehanded. So, thank you for your question! I wish you awesome and fair game!