Hmm, well for the 'recommendation' quests...Having to go to every single branch of the Mage's Guild in Cyrodill to brown-nose my way into gaining access to the headquarters felt forced and major overkill. I can see some level of recommendation for getting into the College with little to no demonstration at the gates, but if implemented please don't force people to go to each individual one. Just have a minimum recommendation of one, with changed responses from Faralda at the entrance depending on who you went to and how many wizards you visited. As for individual recommendation quests, there are six court wizards in Skyrim and six magic skills. Have each one specialize in a specific skill, and have their quest revolve around proving your skills in that area (this would also allow focused playthroughs for a Conjurer, Illusionist, Destruction mage, etc.). If you wanted to include Alchemy in the potential skills, I would suggest using someone recognized as an authority on it such as Lami in Morthal, Frida in Dawnstar, or Elgrim in Riften. (Lami is perhaps the best choice, given that Angeline in Solitude refers you to her for training, and it preserves the one-trainer per hold ratio). However since Alchemy is a low-brow skill practiced by even simple hedge-witches, and that it doesn't really require significant skill or intelligence in the way that spell schools or enchanting do, I wouldn't have this as a recommedation that would allow admission to the College on its own, and have it more of a skill that ties into the others leading towards a 'gone to all the wizards' acheivment. Perhaps even have how your character is talked to in the College change depending on what skills you demonstrated skills in, with trainers have more respect for you if you share their discipline. I would also direct you to a thread over at Bethesda forums (link), where some ideas have been posted that might help you out or show you some ideas. Also you misspelled College wrong in the title and tags. Just saying.