i think a good guide to a favourite commentator is who you would most like to sit down and talk about cricket with. i mean bill lawry adds passion, and tony greig adds a bit of feistiness to australian coverage, which makes both of them enjoyable enough to listen to. throw in the fact that they aren't mugs and know what they are talking about.
but for mine, the one commentator that i would love most to chew the fat with would be ian chappell. not only is the guy a doyen of info, he comes acroos as having a highly analytical mind, and he isn't afraid to court controversy. it's all about personal choice, and for mine, it would be chappelli every day of the week...