I can still see Rogue being useful.
Rogues do have Craven and Maiming Strike in their favor, plus in their role nich their Skill Points cover everything where the Factotum waits until 3rd level for his Int to catch him up and hopefully start to surpass to Rogue. Then of course, the fact that the Factotum plays off like a Spellcaster (one of the reasons it is better than the rogue) the more levels it obtains is kind of a huge nix if you're wanting to play a mundane. Which goes back to what does the OP want? Rogue like he mentioned, Lesser_Rogue+Spells, maybe just a stealthy addon to a spellcaster? Or something unexpected, like a dandelion pirate king of sugartop town.