Mmm, here's my list then, this list is an update to the last one, I have 2 guys I normally play with who are very good players imo.
This list is the completion times it may be indicative of each monsters difficulty.
My weapon is always Bow Gun, current strength is 285 not giving away much more than that ;)
The other guys use Long Swords and the other uses Lance or Long Swords (LS).
The following times include the time it took to run to the monster.
Great Jaggi – N/A
Qurrepeco - 1:15
Royal Ludroth – 2:15
Gobul – 2:15
Rathian – 4:30
Barroth – 7 minutes solo, if you’re a gunner bring pellets for this fight, then send some crags at it legs. If you’re a gunner with some confidence in your job then bring shot 2 and go for its legs.
Lagicarus – 7:00 rounding it up a little.
Boriath – 14 minutes – this guy is pure win, love this fight.
Rathalos – 8:45 (Yes it managed to fly)
Okay after that I’ll say the only one to give trouble or at least for myself would be Boriath, though there was once when Rathalos got very angry after we killed Rathian I guess.
We did three man Diablos but I never kept track of it as it’s pointless to track time on Diablos unless you’re going in raw.
Tips for gunners – Guns are just like lances but your further back, shot 2 is the bread and butter, find a spot that hurt it until its clear you hurt it and then move to the next spot.
Weak Spots
Rathian – Feet and then Head
Rathalos – Head, forget everything else just kill it, it ignores the pain of its wings breaking of skull cracking.
Lagicarus – Depends on your shot, if you’re using Fire then aim for the spine, if you’re using shot 2 aim for its shoulder connecting to its neck or its face, Fire also works on its face but unless you’ve got the entire Valkyrie setup your better off trying to flip it over.
Barroth - As a gunner keep your distance as a hunter stay behind it and go for its legs either way. When you see fumes coming from its head just avoid a lot and get some shots in. I’ve done this without having to pot even, it’s an easy fight but one mistake and your life bar is shot.
Royal Ludroth – Fire shots work or Pierce 2, all face shots means he dies way too fast.
Those are times and tips, this is most definitely not a guide, there’s a lot more to each of these monsters but it should help anyone really.
But for me the most fun I have is on the Boriath fights, watching it jump off walls and stalk people, it moves lightning fast and can easily do ½ your health or instant kill. Great fight with this guy.