Also to be taken into account is how much a rope will stretch. With the widespread use of woven and braided ropes (as opposed to the 3&4 strand twisted varieties) and the availability of rope with a greater amount of ‘give’, one has to consider the amount the rope will stretch as the knot will tighten under the applied tension such that it may not be easily untied, if it can be untied at all. I’ve seen bowlines in 3/4" woven rope in which the knot had to be cut apart. Use of a removable toggle may be indicated to provide for the slack necessary to untie the knot.
As for ‘cinch’ knots, unless your purpose is to cut the rope to unseal a sack or bag, i’ve always found a simple clove hitch to be adequate to keep a sack closed and yet be easy to untie. For compressable bundles, tie a bowline in one end of the rope (or splice an eye if you’ve time) and, once you’ve wrapped the bundle, pull the other end through the bowline. You can then reef the rope through the bowline and secure with a half-hitch; pulling a loop (similar to tying your shoes) through to make it easier to release.
In the same way, shoelaces tend not to come untied as frequently if tied such that the ‘loops’ are treated as tying a square knot.