Leeds - Ryanair get you in after 9am, flight back is before 6pm. Airport is nearly half an hour from the city. EI are ~0730 and 1840
Glasgow - flights back are either too early (1525) or too late (2155)
Newcastle - gets you in at about 11am, and home the next day most days,as opposed to 8am and 7pm roughly on EI
Its generally the same story on all dual-served routes. EI sacrifice frame utilisation for better timings, FR sacrifice suitable timings for frame utilisation. Two models, both should work but one has far higher yielding fares.
When FR's capacity dumping ends on MAN/BHX/LPL it'll be status quo again there.