The bars reviewed during Snack Bar Review Week were:

Luna Bars
Nature Valley Healthy Heart Honey Nut Granola Bar
Fiber One Oats and Chocolate Bar
Think Thin Chunky Peanut Butter Bar
Powerbar Pria 110 Plus
Balance 100 Calories Vanilla Caramel Crisp Bar
Raw Revolution Coconut and Chocolate Organic Live Food Bars
Odwalla Superfood Bar
Kashi GoLean Crunchy Protein and Fiber Bar
Lara Cherry Pie Bar
I'm also including Gnu Food Bars although it was reviewed a week prior.

Best Tasting Bars
Lara Cherry Pie Bar
Runner Up: Gnu Food Bars

Most Fiber
Gnu Food Bars: 56% of the RDA.
Fiber One Oats and Chocolate Bar: 35% of the RDA
Kashi GoLean Crunchy Protein and Fiber Bar: 24% of the RDA
Kelloggs All Bran (not part of Review Week): 20%
Lara Cherry Pie Bar: 18%
Raw Revolution Coconut and Chocolate Organic Live Food Bars: 17%

High Protein (includes all bars reviewed from 2004 until now):
Think Thin Chunky Peanut Butter Bar: 20 grams.
Genisoy Low Carb Crunch Bar: 15 grams - and surprisingly good, low carb or not, so read the review if you haven't already.
Atkins Morning Start Triple Berry Breakfast Bar: 15 grams
Luna Bars: 10 grams
South Beach Diet High Protein Cereal Bars: 10 grams
Kashi GoLean Crunchy Protein and Fiber Bar: 9 grams

Lowest calorie
This includes only bars that are approximately 40 - 50 grams. I find 28 grams is too small for a snack bar.

Fiber One Oats and Chocolate Bar (40 grams) - 140 calories
Gnu Food Bars (40 grams) - 140 calories
Kashi GoLean Crunchy Protein and Fiber Bar (48 grams) - 180 calories
Luna Lemon Zest bar (48 grams) - 180 calories