In reply to alex_th:
I haven't done those Mittagfluh routes, but I have done Abadia (6b+) and Südkante (5a) on different occasions. Clearly the former is too hard but Sudkante would give you a good margin, but I don't remember the protection, I'm afraid. I'm pretty sure I didn't walk off either time. However, bear in mind that my oldish (2004) guide says that on any sunday in the summer there can be up to 20 parties on the crag, and in those circumstances walk off rather than abseiling. Personally, if I saw 20 parties, I'd go somewhere else.
Don't rule out Eldorado - maybe do some granite padding practice on some of the other slabby crags with shorter approaches, in the valley, before deciding. I've done Septumania (6b), Motorhead (6a+) and Hirnriss (6c) and of the three, I thought Motorhead was the easiest - even after doing Septumania three times, I still found one of the slabby pitches high up quite scary, though any re bolting could have changed that.
However, there is a big difference between Mittagflue and Eldorado. The former is steeper and more imposing when seen while driving down the valley and it's hard to believe at first that there are relatively easy routes there. Eldorado on the other hand doesn't make its presence felt in the same way as it lies well back and and to me, seems more friendly and inviting and its surroundings are far more grandiose. Certainly you don't get pumped on Eldorado... well, at least your arms don't. Also the walk down is mellow. At Eldo you can leave your pack at the bivvy boulder near the foot and climb unencumbered, just carrying your trainers on the route.
Post edited at 12:23