I'm like j_garcia in that I like banana plugs better than spade lugs, but I think the Sewell banana plugs are fine. Sometimes it comes down to nothing more than preference.
It may be important to see what fits and doesn't fit the speakers you get. The binding posts on speakers are not all the same. Some longer banana plugs don't insert all the way in, and can vibrate loose over time. Similarly, some banana plugs fit tightly into speaker binding posts, and some are a loose fit. (Adam, aka, Out of Context Man, take note
)
Check your AVR too. The AVRs I'm familiar with have the speaker binding posts close together. If your banana plugs have wide insulated bases, they may not all fit in the small space available. The Sewells you choose look like they would fit on the back on my AVR.