please help

hi im an experienced rs player, however ive never pk'd on anything higher than a 50combat obby mauler

currently my pure account i made is
94 magic, and on its way to 90+rng
i have several questions if anyone could help me answer id appreciate it.

for all of the questions please remember, i dont care about cost and i dont care about time-spent
to obtain the necessary skill requirements.

question 1: AGS or GMAUL
what are the differences in strength between 50atk/99str or 75atk/73str
which one reigns superior in edgy pking, which one in deep wildy pking?

question 2: do 1def pures do well in deep wilderness, or should i go 20def for mystic, 40def for venge ect?

question 3: is there a map showing what areas of the wilderness are multi combat, or must i learn this
from experience?

question 4: how many dbolts/barrages/venges (if i decide to get 40def), should i take with on a deep wildy trip

question 5: is the normal spell book w/ godspell setup any good (compared to ancients) i know some people value the entangle + tb + godspell, is there any merrit to this method?

please keep all answers constructive, thanks in advanced for any advice one can give :]