Assuming of course that you don't buy bread with sugar in it.
"Although the Glycemic Index provides some insights into the relative diabetic risk within specific food groups, it contains many counter-intuitive ratings. These include suggestions that bread generally has a higher glycemic ranking than sugar and that some potatoes are more glycemic than glucose." - Wikipedia
From a weight loss perspective sugars, such as in fruit juice, are superior to starches for two reasons. The fructose is thermogenic and raises base metabolic rate. Secondly, starches tend to reach lower lengths of the intestine undigested where they can feed bacteria that generate endotoxins.
Low starch, high sugar, low fat, and 80 grams of protein a day is a very good formula for weight loss.
I agree that fructose (whole fruits) is preferrable to starch, and people with colitis/IBD seem to find relief from that: http://www.breakingtheviciouscycle.info
But I'd recommend agains juices - they allow to pour down way more fructose quicker than you could chew in the form of whole fruit.
IIRC, although your body can run on just the glucose it gets by breaking down fat, it is less efficient. In my own experience this shows up as a negative effect on mood -- which makes me more likely to want to eat (and binge).