Postby marc5174 » June 7th, 2014 1:47 pm
It depends on what you want. Probably one of the best is 新和英大辞典, even though that one is also one of the most expensive. A little bit smaller and cheaper, but still quite good, would be ウィズダム和英辞典. Note that both are translating one direction only (JA->EN). If you wish both directions, there's another book from both publishers, you'll find it by switching the 和英 kanji around.
Both are also available on some 電子辞書 (I have Casio U-18000 and got both on it).