#3 Liverpool double
Liverpool missed out on the Premier League by inches in the 2013/14 season, following which Suarez called it quits and headed out to Spain. Had he stayed, however, Liverpool would easily have had their best chance at a major trophy in years. They could have even possibly gone out and done the double.
The following seasons saw the club drop to 6th and then 8th as they lacked firepower up front. With SSS still in play, however, Liverpool would probably have won their first Premier League title in the 2015/16 season. Although most teams struggled in 2015, it would not be unreasonable to assume that with the best front three in the league, Liverpool would have been favourites for the title.
Throw in one of the cup competitions as well and the club could have been back to their old glory days. The club would also be competing in the Champions League and could even have made it all the way.
Liverpool is a club, famous for producing great European nights, and who is to say that they could not have gone all the way and left fans with a memory similar to Istanbul.
