Personally, I like spades. I think there is more surface area and you can tighten the terminals to make very good contact. Since I don't have an oxygen free environment to solder in, I prefer crimping when making my own cables. As to connectors, well, if I have someone else making the cables (such as Audioquest) I use there connectors. For my own DIY I tend not to spend as much and use Vampire connectors. The WBT are much better, but far more expensive. The Parts Connection has probably a dozen different spade connectors which range in price from a few dollars to the WBTs. The people there are also very helpful. If you are going to solder, get some of the WBT silver solder. Good luck--and have fun with it.