You can change a lot with the sliders in 19 but I find the default offers the most exciting gameplay, especially on Pro/WV. Beyond that, you have to start tweaking with the sliders to get more of a challenge because like most FIFA games, once you venture past WC level, the improvements to (or challenge from) the CPU tends to be mainly speed than ability based which is good and bad because you don't have Brighton playing tika-taka but they will end up playing a maximum 3-4 touch passing game (which there is still a noticeable difference between them and say, Liverpool, rather than just being Brighton on steroids.) The sheer number of animations in 19 is astounding, I've played over 600 games and I still see animations/player interactions that are new to me. Graphically, 19 is a masterpiece even unpatched but along with 16, I think it's the only other title (except perhaps 14) where the CPU actually mixes up its style of play against you and playstyles are noticeably very different from poor teams to good teams. As much as I liked 17, I found that a real problem with the CPU being well-balanced but terrifically boring when losing because it would continue to make the same errors and Cambridge United were just a slower Man City. 18 didn't seem to have any team/player ID that made sense for me (Arsenal would play the same as Spurs regardless of how you switched the players around - there was no allowance if you subbed in an all weak left-side of the field for example.) Lastly, I find 16 and 19 are the only FIFA titles I can play where I don't feel cheated by circumstance when it suits the CPU. If a goal occurs, it's mostly down to my bad decisions to prevent it rather than it being impossible to prevent.