I'd recommend a 電子辞書 anytime! The reason is not that the electronic version has better content. It's mainly because it's much more portable that you can bring it around anywhere you like. At any point of time, if you need to search for a word, it's there for you to use. That way, you can learn much faster. Also, with advance feature like super search, you can find a word far more easier than a paper dictionary. I'm using a Sharp PW-9700 and I bring it along wherever I go.
This dictionary is recommended for foreigners learning Japanese because of the extensive definitions and examples. It is much more descriptive on the correct usage of words than other dictionaries. I have it myself and I like it.