にしては(Even) considering, (Even) for

にしては and からして both use a reference point, but にしては highlights a result that defies expectations, e.g. 子供にしては詳しい ('He knows a lot for a child'), while からして draws a conclusion from one part that suggests the whole, e.g. みんなの感想からして面白そう ('From everyone's impressions, it seems interesting').

にしては and からすると・からすれば both express judgment, but にしては highlights a state or result that departs from expectations, e.g. 初心者にしては上手だ ('He's good for a beginner'), while からすると・からすれば shows reasoning from a standpoint, e.g. 私の経験からすると ('Based on my experience').

に取って (often written in kana as にとって) and にしては both involve perspective, but にとって expresses personal relevance, e.g. 子供にとっては大問題だ ('It's a big issue for a child'), while にしては shows that a certain quality or characteristic defies expectations, e.g. 子供にしてはおとなしい ('He's quiet for a child').

にしては and から見ると both reflect viewpoint, but にしては highlights a result that departs from expectations for a category or role, e.g. 新人にしては落ち着いている ('She's calm for a newcomer'), while から見ると gives a neutral assessment from a given perspective, e.g. プロから見ると ('From a professional's viewpoint').

Both are used in making comparisons, but にしては expresses when something is unexpectedly different from what one would assume based on a certain condition, e.g. 子供にしては大人しい ('He is quiet for a child'), while に比べて simply compares or contrasts, e.g. この問題は前のに比べて簡単だ ('This problem is easier than the previous one'). にしては implies something contrary to expectations, while に比べて does not.

Though both express a sort of contrast, they are used quite differently in practice. にしてみれば expresses a hypothetical from the point of view of another, e.g. 初心者にしてみればなかなか難しい implies that one might expect something to be simple, but it's difficult from the perspective of a beginner. にしては expresses a surprising or unexpected result given the basis or condition, eg. 初心者にしては上出来だ ('That's a great job for a beginner.')

にしては and としては both relate to judgment, but にしては highlights a state or result that departs from what one might expect, e.g. 子どもにしてはおとなしい ('He's quiet for a child'), while としては simply shows perspective, e.g. 親としては反対だ ('As a parent, I'm against it').

割に and にしては both express something contrary to expectations, but 割に suggests mild contrast with what was assumed, e.g. 高いわりに美味しくなかった ('For how expensive it is, it wasn't tasty'), while にしては more clearly emphasizes how something defies expectations for its role or class, e.g. 初心者にしてはうますぎる ('He's too good for a beginner').