have a look here in their "product tests".
http://www.autoexpress.co.uk/
There are tests for analogue and digital gauges. Don't know how much to trust their findings, but at least they've tried.
Analogue - good one was Draper 69924 for £8
Digital - Accutire seemd to do quite well, even their cheapest at £8, or a £11 version.
For bikes you need to consider access to the valve.