If you double box bowling balls,as you should, it will almost never be damaged, bu tthere are no guarantee, only insurance.
Both FEDEX and UPS seem, to me, to be the safest, quickest and easiest to use.
FEDEX is slightly cheaper and they do normally deliver on Saturday. UPS is slightly safer, and for me, seem to treat packages slightly better. But this also seems more dependent on the local FEDEX and UPS people in your neighborhood, as others have had the opposite treatment. UPS alos has a number of stores almost in every town and they are very convenient for me. The nearest FEDEX is 20 - 25 minutes away. This may also vary with where you live.
Both provide a true tracking number, insurance for the first $100 (edited) free as part of the price and guarantee delivery within a specified period of time,none of which the post office does. Insurance is always extra and there is no true tracking number no matter the price.
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"None are so blind as those who will not see."
Edited on 1/29/2010 3:30 PM