Fresh, good quality ingredients will always make a better tasting beer. That doesn't always mean that the more expensive item is better. A 5-year old jug of LME is probably going to make a crappy tasting beer, even if it's 4 times the price of the DME.
Dry malt extract has a much longer storage life, so depending on the turnover at your homebrew shop, the DME could be a better choice, though you may need to supplement with steeping grains or a minimash, if the LME that's called for has a more complex flavor profile (i.e. based on your LME link, use extra light DME and get some Carapils to steep).
Fresh, the LME will be easier to deal with, though, since you wouldn't have to worry with the steeping grain.
Note: I would recommend purchasing your DME or LME from companies that specialise in creating brewing ingredients (Muntons, Weyermann, etc.), because their processes will be targeted at producing good flavors in beer.