I think Onana has the higher ceiling of the two players, but, I think Garner is the one who is more important to this current Everton side. I am a great admirer of Onana and I think, injuries apart, he is destined for the champions league in the next couple of seasons. Garner however. I expect to be around at the club for many seasons and with his many attributes he is the type of player we should be aiming to build around. He is a big, quick, aggressive unit with a very good first touch and an eye for a pass. It's a pity we are not just a bit more stable financially, as I think Garner and Onana as a midfield pair would be formidable.