一方では...他方では => On the one hand N2
Compare
[後「あと」]で => After V1, V2 N5
Time
… 方 => the way to do something N4
Description
〜がさいご(が最後) => if you do... negative result N1
Decisive (resolute decision)
一方だ => more and more; continue to ~ N2
たが[最後「さいご」] => Once A occurs, B happens N1
Information, Report
一方 => on one hand, on the other hand; although ~ (conjunction) N2
た[方「ほう」]がいい => It would be better to A N4
Can, Should, Must
より~の[方「ほう」]が~ => B is more C than A N4
Comparisons
[一方「いっぽう」]だ => Change A continues, A does not stop N2
Miscellaneous
て仕方がない/てしょうがない => can't help but; very; extremely ~ N2
ない[方「ほう」]がよい => It would be better to not A N4
Can, Should, Must