Notes from author
Start as a Sorc and level up accordingly. First NG does not need the strength or shield. Get strength to 16 and dex to 12 to equip any weapon you want. Pump Int to 50 Vit t0 20 and End to 20 fairly evenly, but can go more into Int. only tough fights are early. Use Magic shield against Capra to negate everything. Use your strongest spells against gargoyles (Quelaag is even easier, just stay back and cast Heavy Soul Arrow with at least 25+ Int).
Use a silver/black knight shield in NG. Once into NG+ start leveling strength until you can wield the greatshield.
While running around replace rings with Slumbering Dragoncrest and the Ring of Fog to avoid enemies. Extra levels can go into vitality for health or endurance for greater carry weight. Must complete Logan's quest for at least the first three New Games (for the sorceries). Also, recommended getting Dark Bead at least 3x (can get more if wanted).
By the end of NG+2 you are nigh unstoppable and can fly through levels unseen.