I always liked GTA, but never went as crazy for it as some people did. I got very bored of the previous GTAs rather quickly, excluding GTA IV. I loved GTA IV, but at the end I felt something was missing. What was missing, GTA V filled in quite nicely. The environments were more diverse, the city felt more lively and less gloomy.
Oh, and all 3 protagonists are the best in the series IMO. Especially Michael and Trevor, but Franklin was great too. I loved them all, and the secondary characters were all great on top of it. I thought the heists were extremely well done, and I loved how you had some choices in how you wanted to approach them. I even liked the prep work you had to do for the heists. Made it feel like you were playing a movie.
Just had a ton of fun with the game. For the first time, I thought GTA matched the hype, and even went on to way surpass it. First time I played every second without ever getting bored.
For GTA VI, I just want them to build on what made this so good. Improve combat even more, make heists more complicated, grander, and deeper with your choices. Improve the map a little bit, as the GPS system didn't really help you navigate on locations off-road.
Undefeated lifetime. Currently playing: FFXIII: LR, GT6, GTA V, Far Cry 3, Xenoblade, The Last Story, Ni no Kuni