Sennheiser 4x9 - which is best?

The 419, 429, 439 and 449 all look like what I'm after - comfort, quality, durability. I need some over ear cans for mostly electronic music. These are all within my budget. I don't have to stick to sennheiser, I have had great products from them in the past though and like their usual sound signature. Anyone have any recommendations? Looking to spend absolutely no more than £100