Whats your favorite Class and Why?

I've started up all 3 and my main will always be Warlock Voidwalker.  My take on the classes are:

Hunter Gunslinger: Ok super.  Like the speed but don't like feeling like my character is made of glass and can't take much damage.  Like the easier control on the jumps.  Haven't tried it in PVP yet.

Hunter Bladedancer:  Couldn't get a handle on it and just felt meh about the super.  The invis is nice but I'm more of a run and gun player.

Titan Striker: Not a big fan of the super in the middle of the pack idea.  Big damage, but if you miss the mark you are a goner as you are surrounded.  Jump height is nice, but the lack of any type of agility just makes the Titan feel too slow to me.

Titan Defender:  I'm just getting a Defender for the first time.  The bubble is definetly useful, but the grenades suck ass and not a big fan of not having an offensive super.

Warlock Sunsinger: Tend to only run this if self res is needed (Nightfall or Hard Mode Raids).  Other than that, using radiance and tossing a plethora of grenades is fun but if I don't need self-res, voidwalker is the way to go.  It is fun to pop a bunch of fusion grenades into a boss fight.  Decent armor and agility.  The jump is annoying but I work with it.  Don't really hop around like a bunny much anyway.

Warlock Voidwalker: Obsidian Mind + Bad Juju.  Nuff said.  Nova bomb every 30 seconds.  Bloom causing anything killed by any of your abilities to explode is also fun.  I like it just for the sheer amount of carnage it causes.

It depends...

I have 2 Warlocks and a Titan. The Warlock's self-res and health regen capabilities are vital while raiding in hard mode and really helpful while doing Nightfalls. The Titan's team-oriented blessing bubble is vital while fighting Crota on hard. 

The Sunsinger's "Angel of Light" perk (hang time above the crowd) is great for getting Ir Yut. The Titan's blind bubble (w/blessing of light) is great for getting Ir Yut or for protecting the team while fighting Crota. A Titan's blind/weapons of light bubble also gives the team an advantage in the Atheon fight. 

Though I don't have a Hunter, I know that the Hunter's invis and movement skills are great for getting through the Abyss or for running the sword against Crota. A Hunter with invis can also use invisibility to revive a team mate in a bad spot or pick up ammo right under the nose of the boss.

My daughter's fav is the Hunter because the Hunter is more nimble and has an easier to control jump. She usually leads the way through the Abyss.

I'm a plodder, so the Warlock & Titan seem to fit. Although... I find I'm leaving the agility perks I use in the Abyss activated nearly all the time. 

Love my Titan. Just matches my playing style of beeing up close and personal. Hulk Smash everything, Ruin Wings which gives me tons of Heavy and Sword of Crota shotty :D

Warlock is my second favorite. The Obsidian Mind with Bad Juju means lots of Nova Bombs being thrown.

Hunter is designed for PvP IMO. I love the throwing knife and speed of the class, but golden gun sucks for PvE. Blade Dancer is fun, but not Hulk Smash fun.

Titan all the way. When I started the game I asked myself. What class will let me punch things in the face? Hmm. Titan. Yes. Have not regretted it.

Got a level 30 and a 28. Working on getting a 3rd up to 20 and then the long road to getting armor for all 3 and getting them all maxed out.

Titan for me as well....

Got all 3 maxed.  Which one I use depends on what I am doing.

Titan!

I'm still sitting at level 31 i need a few shards to fully upgrade. I think it's going to take a while though as I can't seem to find enough people to play lately.