1.yamamoto, his spirtual pressure could be felt thru out the entire sole society.
2.ichigo, can use his shinigami/hollow ablitys to its full potential and has quincy powers that will help him gather even more rieshi from his surroundings.
3.kenpachi, already has huge,spiritual pressure w/o shikai/bankai when he gets one of those he will be even more op interms of spirtual pressure.
4.aizen, his spirtual presure put fear in the hearts of espada and was powerful enough to kill humans thats with in 20feet of him.
5.juha bach, hes the only one able to steal yamamotos bankai and control it.
2.ichigo, can use his shinigami/hollow ablitys to its full potential and has quincy powers that will help him gather even more rieshi from his surroundings.
3.kenpachi, already has huge,spiritual pressure w/o shikai/bankai when he gets one of those he will be even more op interms of spirtual pressure.
4.aizen, his spirtual presure put fear in the hearts of espada and was powerful enough to kill humans thats with in 20feet of him.
5.juha bach, hes the only one able to steal yamamotos bankai and control it.