If it is a good beer, it must be strong:

There is no connection between quality and strength. One of the world's great brews is the Berlin style of wheat beer crisply refreshing at a mere 2.5 to 3.0 per cent The famously sociable, drink-it-by-the-pint, everyday British bitter typically has only 3.5-4.0. On the other hand, if you want a beer with a book at bedtime, settle down with a classic such as Thomas Hardy's Ale, at around 12.5. Serve this one in a snifter.