yuvāḿ tulya-balau vīrau
he rājan he vṛkodara
ekaḿ prāṇādhikaḿ manye
utaikaḿ śikṣayādhikam
yuvam -- you two; tulya -- equal; balau -- in prowess; virau -- warriors; he rajan -- O King (Duryodhana); he vrikodara -- O Bhima; ekam -- one; prana -- in terms of vital force; adhikam -- greater; manye -- I consider; uta -- on the other hand; ekam -- one; sikshaya -- in terms of training; adhikam -- greater.
Bhima was physically more powerful, but Duryodhana was more advanced in terms of technique.