While Factions is my favorite campaign and Shing Jea island is a great place to play (except for the chat in Shing Jea Monastary), I think Pre-searing will always be my favorite starting area. Any time I make a core profession character I always start them in Tyria. Elona can burn to the ground in a fiery storm of pain with Koss standing in the middle.
Pre searing was my first and is still my favourite, i've enjoyed all campaigns, but i find the starting areas of Factions and Nightfall incredibly tedious.
Shing Jea fo sho... I feel I might have made one too many character in Shing Jea Island to appreciate it so much now, but it still beats the other two.
Pre-Searing Ascalon... Bleh, making noob combos with the random skills you receive gets old after level 3. (Btw, should everything from Pre-Searing Ascalon to Shiverpeaks be considered Prophecies noob area instead of just the Pre-Searing?)
My favorite is Pre-Searing. Not for the content (although it looks and sounds great even now) but because that is where I started. Shing Jea and Istan simply don't give me the same nostalgic feeling when I start a new character there.
Pre's good, but I did find it a bit tedious after a while (couldn't be bothered with Gate Monkeys), same goes for Shing Jea but that's more to do with the Afflicted exploding on me than anything else.
Istan is... *shrugs* I've dragged two characters through there that are still around: my main (first character I ever had as well) and a monk which is rank 1 Survivor. I don't like it there really, the scenary is so-so compared to Pre and Shing Jea.
Shing Jea Island. Factions was the first game I bought and i took my time exploring every nook and cranny and doing every quest I found when I was new. Shing Jea feels like home.
Then I progressed to the city area and I REALLY missed the island scenery.
Pre is hands down the best area in the entire game. Relaxing environment, soothing music, non aggressive enemies. ANET got it right the first time.... then screwed it up..... twice.
Shing Jea Island is my favorite. I love the spot outside Tsumei with the blossom trees. Very relaxing. Almost all of the scenery there is very pretty, or interesting.
Pre is the Red-Light district of the Guild Wars world. The meeting place of the pervs, stalkers, and guys pretending to be girls. I avoid it. Though if I don't have to deal with the people, it is nice as well.
Istan is ok. Way, way too long and drawn-out. And the scenery isn't exactly my style.
Pre is my favourite newb area; I love the scenery and music. Fond memories of slaying Bill the grumpy bull and trips into the Northlands, plus the "sunbeam" in the Northlands is awesome
Shing Jea , without doubt . I have 1 Prophecies Char (lvl20) and 2 from NF (lvl3-6ish) , all now mules .My other 8 chars were remade as Factions characters since the start area was much more suited to my tastes.
The scenery was nice , the areas pretty well balanced , the quests/missions were fairly varied and most importantly it could be done at a nice speed. I could not (and ive tried) take a character through Pre and all the way thorugh prophecies again. The pre-lvl20 area is just too massive to bother with for me.
Istan just bored the crap out of me. Don't know if that had anything to do with the Paragon/Dervish classes which i didnt enjoy much.