Yeah, 291 and 261 take the same size chain/bar as specc'd from the factory (.325 chain) where the 391 is the larger 3/8 'low pro' pitch chain. 261 is a 'pro' model - the cylinder is bolted down to the crank case making the saw easily serviceable where the other two are 'clamshell' designs which makes them more expensive to service. The 261 is likely to be the tougher of the three saws, in operation they will all be similar but likely the other two will be a little more finicky with chain tensioning and those bits.
Bookmarks