Is it better to get the largest one you have, or is that not recommended?
Should I use the biggest size possible, or would that be bad?
The bigger the better, or is that not good?
大きければ大きいほど = as big/large as possible, the biggest/largest one (possible), the biggest/largest one (you sell/have)
良いのか = is it good?
大きすぎ = too big/large
ダメなのか = is it bad?
店員や社員に聞きたいなら、「should」や「recommend」をよく使っています。
"Should I get this one or that one?"
"Between this one and that one, which do you recommend?"
"Do you recommend this one or should I go for that one?"
いろいろなコンビができます。
アメリカ合衆国 
