In reply to Daibuzz:
We were fine with a 70m there for cragging. A lot of the multi-pitches do have 40m pitches, so if you want to get on anything you might want to retreat from, perhaps an 80m would be useful. We bought 60m twins for multipitch and they worked nicely.
Route wise, here are my multipitch highlights:
-Lluvia del Asteroides A 250m 5c. Definitely a 3* route. A steeper (but still quite mellow) start leads to a brilliant fourth pitch, onto a slabby finish. A really enjoyable day out, good fun, and doesn't take too long.
-Amptrax - 200m 6a. Classic with a brilliant traverse pitch. Pure class. I would warn that it felt fairly high in the grade due to the rock being very polished, and the bolts are more spaced than on other routes - so perhaps it's best to go into this one with a mindset of it feeling a little harder than 6a.
-Ebola 6b+ 200. The best route I did there, steady climbing leads to a nice short 6b+ section pulling over a small overhang. I'd say it's fairly high in the grade due to the 6b+ section being so short (so the moves are hard for 6b+ to warrant it getting that grade), so if that's near your limit, bring a mallion or something so you can bail.
-Valentines' day - 6a 120m ish - A good route with a steady start, and an enjoyable last couple of pitches. I didn't find this one particularly inspiring but it serves as a nice introduction to multi-pitches in the area, and as it's an ab off it gives you a chance to make sure your multipitch abseiling skills are sharp.
-Bombay Saphire - 6b 120m ish. Right next to valentines day, the 6b pitch is pure class and low in the grade in my eyes (if you like a bit of slab that is). Top pitch is utter shite, really easy climbing, but a bit chossy and very spaced bolts, maybe do the top pitch of Valentine's day instead?
-Blue Line, 5c - 300m ish but half of it is very very easy. Basically a long romp up scrambly ground up to an enjoyable few pitches. Nice top half.
Now for singlepitch:
-Bladerunner - 6a. Basically Right Unconquerable. Class. Bolts are a wee bit spaced at the top (6 bolts on a 25m route)
-Hockey Night in Canada - 7a. Low in the grade If you're climbing 6c this could be a nice one to project! Short sections of interest broken up by class rests (a fair few are basically no hands!)
-El Canalillo de la Mari 6b+ Absolute pure class. I think this is my favorite route of the grade. Brilliant, just brilliant!
-Geisha 6a - This was the first route I did in Chorro, a nice way to get used to the footwork required here. Enjoyable, but nowt special really.