Doing both types (boom & basket) fairly regularly, IMHO boom is harder.
Basket is a bit of a joust but once you are in, your flying can afford to be a lot less precise (the basket can be dragged around a fair bit, the boom envelope is fairly tight).
However, its horses-for-courses.....this p.m I got lucky first time with the basket so big grins!! (thanks Fagin!!)