pi4t: Of course, lest anyone think that's the only functional rogue type, rogues using more conventional weapons also have advantages. Weapon finesse means you can focus on Dex and get great to-hit and AC, along with the other things rogues get from the stat (and can only be done with smallers weapons). Two weapon fighting is feat heavy but gives you extra chances of sneak attacking, and has most chance of hitting with smaller weapons.
While going strength-based isn't the only way to build a melee character, it is certainly the most reliable way. The problem with dexterity-based fighting is that your damage output suffers immensely. Sure, you get lots of attacks, but the damage dealt by each hit is hardly impressive. At higher levels when you can afford magical items with significant damage bonuses those two-weapon fighters really start to shine, but at lower levels they have a rough time.
Let's do some math based on a rogue 4 / fighter 1, looking at a hypothetical str-based and dex-based build
* Str-based build has 18 strength, weapon focus and power attack feats, and a +1 greatsword
* Dex-based build has 14 strength / 18 dexterity, weapon finesse / ambidexterity / two weapon fighting feats, and two +1 shortswords
(I chose power attack and weapon focus because they net the same to-hit penalty as the TWF/ambidexterity combo, simplifying the analysis by keeping the accuracy of both characters the same)
Without sneak attack
Strength character: +8 to hit, 2d6+13 damage (15-25, average 20 per hit)
Dexterity character: +8/+8 to hit, 1d6+3 damage (4-9, average 6.5 damage per hit / 13 damage total)
With sneak attacks
Strength character: +8 to hit, 4d6+13 damage (17-37, average 27)
Dex character: +8/+8 to hit, 3d6+3 damage (6-21, average 13.5 per hit / 27 damage total)
That math isn't very good for the dexterity-based character, and it doesn't improve until he gets powerfully enchanted weapons. That strength score is just going to keep increasing on the strength fighter, and when BAB hits +6 his damage output is going to explode, so the dexterity fighter isn't going to catch up without magical assistance. It won't be until the epic levels that he's even remotely comparable to the strength-based fighter against sneak-attack-immune foes.
Again, this isn't to say that it's impossible to play or enjoy dexterity-based characters, but strength-based characters are definitely the more powerful approach.