Daer Rito... if you are going to remove item sets, then please do this one thing

The first thing you need to do is get rid of the current suggested items in a number of cases some of the suggestions are pretty meh. Sometimes new builds come in and the current suggestions are out of date completely.

Once that is done you need to add two groups of items that are compiled by your database every day: most common completed items for your champion and the highest winrate options (if picked up at least 3%-5% of the time). Do it by champion and maybe only have your database pick up the purchases by players in gold+ games so as to show people what the better people are building on your champ.