It depends.
In your case, from what I saw on another thread, you're taking 6 kids w/you, ranging in ages from 2 to 12. AND you're staying an hour's drive away. Which city will you be driving from?
Given when you'll be at DL (in June) and since Magic Morning will start at 7am, then you'd need to allow for probably an hour and a half driving time from your location to the park.
Which has you leaving the house at 5:30 am. Getting 6 children awake at 5am and out the door in 30 minutes is pretty tough. You'd probably need an hour just to get everybody dressed, fed, and in the car...which has you waking up at 4:30 am. Honestly, I think you should forget about Magic Morning. It might be one thing for you, DW, & your 2 kids but when you add on 4 other children on top of that, it makes the timing of it quite challenging.
Instead...start your day at whatever park does NOT have Magic Morning or Early Entry. This would have you leaving the house around 6:30am, and that is a precious hour's worth of sleep. So:
Tues, Thurs, & Saturdays - start at DCA
Sun, Mon, Wed, & Fridays - start at DL
If you were staying right across the street from DL, I'd say go for it. But the hour's drive is a killer at that rush hour time of day.