Tesco's always has loads of pikey's hanging around, so I've never felt the need to go into the Maple Leaf as it looks a dive.
Good call Yoda - the Beckett is a top boozer.
Top 5:
The Warwick
The Hare & Hounds
The Vintners Parrot
The Bull
The Mulberry (great in the summer)
Special mentions to The Golden Lion and The Yeoman - spent many a lunchtime and evening in there when I used to work at Lloyds!