Apple and ASUS lead the way in computer reliability and support while Dell and HP are often the worst, according to a reader study published today by PCWorld that also included smartphones. Macs took the top spot in both desktops and notebooks as they almost always rated above average both in how few needed repair and in the quality of their over-the-phone support. ASUS came next closest with very high reliability for notebooks but mostly average desktops and phone help.