Out of curiosity, I just went through my deed log, just for the Eriador tab.
Explorers (gain by just running around a bit) 134k
Quests: a bit more running around, but you will complete explorers and some slayers just doing those: 116k
Slayers: those take some elbow grease and some slayer accelerators will not hurt, but many starter zone slayers have been greatly reduced some time ago: 186k
Once you finish all others, you also get metas: about 44k.
If 120+, roving threats are also quite easy. Many zones have deeds for those, worth about 10k vxp more.
Total: 490k, enough to get 5 slotted virtues to 65. Again , this is JUST Eriador tab. No Rhovanion/Gondor/Mordor.
Explorers and quests can be done while adventuring through areas on-level, then one can return at 100+ to collect slayers and metas. If one does explorers and quests in Moria/Rohan/Gondor/Mordor, one would need to polish off a whole lot less slayers.
Heck, when revamp came I browsed my deed log for close-to-completion stuff and knocked out Wit 0-60 in one evening.
Passives barely matter for the bonus they provide.
So if one 'hates deeds' and just wants to grind levels in warg pens instead of actually adventuring through Middle Earth, it it really a problem with virtue system?