I find SPROCs ideal for both L2S and L2E. When unidirectional.Fair enough, though L2S also was interesting for its roll-your-own queries with free change management as long as you didn't need to pass between tiers.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1