I assume we are talking about real-world flying, rather than training?
If that's the case, the first thing to point out is that the majority of real-world flying is done using some form of nav-aid (ground based or satelite). In this case, only a very rought idea of wind is needed, since the navaids can be used to ensure the correct track during flight.
Real world flying over reasonable distances without navaids, though, definitely requires proper planning. Doesn't really matter what method is used, but I can't see any problem with the whiz-wheel, for the reasons DFC gives. Likewise, I can't see any real problem with electronic planning tools. Once you've learnt to use it properly, I don't think the whiz-wheel is necessarily any more difficult to use.
FFF
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