rather; might as well; better just
Used when choosing a more decisive, often somewhat drastic option: 'rather than doing this halfway, it would be better to just ...'. Common with forms such as いっそ〜しよう, いっそ〜したほうがいい, and いっそ〜してしまう.
Rather than fixing it halfway, let's just redo the whole thing.
そんなに迷うなら、いっそ断ったほうがいい。
If you're that unsure, you might as well turn it down.
if anything; on the contrary; almost rather
Used when an extreme or unexpected situation produces the opposite impression from what one might expect, often with evaluative adjectives such as 清々しい or 気持ちいい.
ここまで徹底していると、いっそ気持ちがいい。
When it is this thorough, it is, if anything, satisfying.
彼の開き直った態度は、いっそ清々しかった。
His defiant attitude was almost refreshing, if anything.
You might as well just quit a company like that.
Rather than worrying about it, I'll just go ahead and tell everything.
Since the plans changed, why don't we just go on a trip.
Having lost everything, it almost feels refreshing.