I too, got a pair of Levis Stay Loose today! I've given up Polar, because their sizing belongs to the 1990s aswell. I wear a size M Polar Big Boys, and its slightly too big in the waist, I can fit 4 fingers.
And even a Polar '93 in size 34/34 is too short length wise, althought the '93s have a much nicer fit, nicer rear pockets etc.