Yeah, I, too, don't like the "judges dont like it" discussion. To me it's mostly an excuse for coaches to justify their personal taste. As a judge there isn't a lot you can do about it, really. There are set execution deductions and set requirements, obviously, it's a very subjective sport so it's hard to be sure about such issues because it might happen subconsciously. Personally though, I don't make a conscious decision to be stricter due to skill selection. Mostly it's a case of the gymnast who struggles with "ideal" (i.e. skills that progress into higher levels) skills not being as ready overall as some other gymnasts and the lower scores will be due to details in execution more than anything else (again, there are obvious exceptions when fear sets in).