と[言「い」]わせれば => On the view of N1
Based/focused/depending on
を問わず => regardless of; irrespective of; no matter~ N2
~ににあわず (に似合わず ) => ~Different from N1
Evaluate
を[問「と」]わず => Disregarding A; Without relation to A N2
Considering, Concerning
と言われている => it is said that ~ N3
Heard
~こと請け合い => I guarantee ... N1
Happens next
尊敬語 => Honorifics N4
合う => do something together N3
~と言ってもせいぜい~だけだ => Even if it’s said that…but it’s just…. N1
Emphasize
丁寧語 => polite form N4
謙譲語 => Humble form N4
にいわせれば => if you ask...; if one may say... N1
Base, base