Apple has won every category it participated in as part of a new study of service and reliablity. The reader-driven PCMag rankings saw it lead the cellphone, desktop, notebook and portable media categories, in some cases with particularly wide margins compared to rivals. Apple's best success was in the notebook category, where MacBooks earned an overall score of 9.2 out of 10 and a very high 9.4 out of 10 "would recommend" score. The win was a narrow one as Taiwan's ASUS made a relatively large gain to claim second place with 8.8 overall and 9.0 in recommendations. Its general...