Easy.. 99str 99att 99def 99mage

But seriously i would get high attack and def and mid lvl strength

so if i have like 40 att and 40 def like 30 str type ratio or what u thinking ?

Nah probably 70attack 80def 60str seems good enough.

40 Attack, 40 Defense, and 40 Strength would be okay to begin with.
To work at Staking. Maybe friendly to get the hang out it.

After that, the levels TMNT posted would be good, then you could start risking a little bit.
Once you're 90 in att, def, and str you should be good for a little bit of higher risks.

Then you could buy anything you need/want to max out out melee. Then you could high risk a bit more and buy things like prayer, mage, and range.

If you're fist fighting, learn how to maneuver perfectly(punch, defend, punch defend, and so on.)

Good luck on risking! Hope you win big!

-Concert

How the pro stakers do it:

Step 1: 99 Att,str,def,hp (1 pray=a must)
Step 2: Make a second account, get 70ish prayer and decent stats. Make the name similar with one letter different. This makes people think you're an easy win when they look up the wrong username. Use a word most people will know as your name. (example below)

Example:
Staking account name: Pvp Paenut
Fake highscores name: Pvp Peanut

The idea above is that people will see your staking account and think "PvP peanut!" then look up the wrong account and anticipate an easy win. Obviously two accounts isn't a MUST, but it helps the whole ordeal. If you don't have the time, stick with only Step 1 (above)