Day 33 - 630am workout....

Yeah, so I'm realizing, again, that early morning workouts are not perfect for me. I made it to the gym at 6:30, and yes, I can do a serious workout first thing in the morning. But was sooooo exhausted after the gym, came home and crashed out again. Not exactly have the most productive morning.
But a very productive day, for a Monday. Mondays are generally all catchup, but I had very useful meetings, ate good, and it was all pretty decent. I think I'm slipping a little on my water intake - only probably 7 or 8 bottles of water today (refills - I don't believe in using all that plastic). My throat is a little sore, which makes water very un-enjoyable.
The weight circuit took a little time to get going. I did 3min of hard cardio, just to get the blood pumping, and then some very good weights. It wasn't until probably about half way through that I really got the blood going and the cardio workout rolling. It's a little bit of a mixed bag, I think. If I do my reps quickly, I get the blood pumping and a cardio workout. But if I keep it slow, keep the heart rate down, I feel like I can do bigger weights for more reps.
So what's better? A cardio or bigger weights?
Side note: I'm getting very tired of grilled chicken. Gotta figure out another healthy protein. Maybe more steak.