I own them both.. better bet is a Peavey USA.
Unfortunately there are tons of folks who have an opion who haven't owned them.
You can locate a Dyna that will be the sound you commonly hear on KLove etc.. when you're done you can cash it out and get your money back.
Don't overlook a Cirrus BXP.. if you find an indonesian one, it's about 90% of what my $2,000 USA custom shop basses are.
For the $400 budget, this opens you to custom shop basses.. $500 gets youto 5 stringers.
OPINION - IF you're playing the common Lincoln Brewster, Crowder, Casting Crowns, MW Smith etc.. much of this material is done on active basses.. Most of the "Mass Choir" type stuff is done on active 5s and 6s.
OPINION - If you're playing at church.. a part of the consideration is the quality of the sound team and/or if you're going direct... basses do react different in various band mixes and rooms.
Tim
PS. IF you choose to investigate Peavey USA stuff, feel free to PM me .. I have owned Most (all but 2) of the USA models.. quite a few of the BXPs..
If you reply back with a list of the material you're doing, chances are I can pinpoint a model that meets the requirement.