Fastest Way?

What's the fastest way to level, in your opinion, to 120 I'm trying to lvl a toon up there just not sure how to do it quickly. I think maybe beat the game once then go half way in NG +

Go through the game. Bosses will give you plenty of souls. If you're good at pvp you can also do that at high level.. Finally co-op gives a TON of souls. At 50-60 at anor londo ro 70-80 at the lord areas/PW the souls just roll in.

hmmmm.... probably want to do coop in the forest... its a nice pvp zone. and you win all the time unless your up against a pro/backstab fisher.

I'd either coop on T4K, host pvp, do "fair" forest hosting/coop, or do forest DW invasions.

The phalinx in the pw. kill it with wog or fire storm and bonfire. Repeat. Thousands of souls in 10-20 seconds.Roughly 10k a time in ng +

What is the Phalinx in the PW?

You know the blob things with the spear and shield huddling round the revolving statue? Those.
https://www.youtube.com/watch?v=KS4H03dZiUA

The painted world. All the squishy things with spears around the statue

I feel like a loser XD

I sit and wait around for people to summon me, but it feels great when
they message me after the boss complimenting me on how well I helped em.
I make a lot of souls by co-op and such, invaders/ect.

I let them know after i'm almost always available to help them with any other boss,
because at the level I'm at apparently does not see much co-op Ha ha!

Personally I found fighting the two human NPC's (in darkened Anor Londo), outside where you battled Smough and Ornstein , gave the most souls in the shortest amount of time (it was also the least tedious).
With the Symbol of Avarice equipped it's 12k the pair. Defeat them, homeward bone back to the chamber princess bonfire, jump down and repeat. 100k souls in around 10-15 minutes for me.