Capellan said:
Ways in which your monk outshines summoned animals:
- you don't take a full round spell to introduce to the melee
- you stick around for more than 30 seconds a day
- you have a better AC
- you have (the option of) ranged attacks
- you don't get nerfed by protection from spells
- you ignore DR/magic
- you can tumble to provide flanking bonuses
- stunning fist: not everything has a great Fort save
- you have evasion
- you can vary your attack methods for creatures with DR/weapon or material type
In practice, these advantages simply don't come up very often. Yes, you have more options as a monk. However, these options are rarely that useful, for the issue of grabbing spotlight time: it simply doesn't appeal to lots of people to be able to run very fast or give flanking bonuses for others. That's a Baldrick job. The _animal_ should be the one giving flanking bonuses to the PC, not the other way around.
Perhaps the most useful abilities there for gaining spotlight time are ignoring DR/magic and stunning fist. However, by the time you're facing things with DR/magic, chances are everyone else will have magic weapons, so it's moot. (Remember, you're not just competing with the animals, you're also vying for spotlight time with the other PCs.) And as said, many, many monsters have good Fort saves especially at mid to high levels.
The only real combat schtick for a monk, if you don't want to be the eternal Baldrick, is to be a specialist mage-killer. But that's something that tends to come up once in a blue moon; and even then, spells like fly negate all your movement advantages vis-a-vis the other PCs.
With all good saves, SR, evasion and immunities, the monk is survivable, yes. But there's more to enjoying the game than just living through a battle. If all you wanted was to live, you might as well stay at home while the rest of the group goes into the dungeon. And besides, even a monk is not wholly self-sufficient. At high levels, you _are_ going to get hit, and eventually you _are_ going to fail a save. That's when you need your buddies to cover for you. Just because you fail fewer saves than others doesn't mean you can solo a dungeon.
As others have mentioned, you character sheet looks very 'one note': you're all about hitting things. This is probably due to the group you're in, as you lack a 'tank'. Your monk's being asked to fill a roll for which the class probably isn't that suited.
The monk isn't really suited to _any_ role. That's the problem. If there was a tank, then he'd just be another guy overshadowing the monk.