Bias tape always works out well.
For childrens quilts as long as they are straight sides, then straight fabric is ok but if you want beauty, finesse, quality work do the bias. I know it is a pain but it is quality. I have also thought about getting those handy dandy little items that theyhave come up with to make bias tape
If you are making one size bias tape all the time then go ahead and get something to make it easier for you. I find I have to m.ny widths to make