Weights vs cardio?

Welcome to MFP.

Sounds like just 10-15 lb loss desired?

Which means don't go extreme on the diet or the body will react extreme.

250 cal deficit would be best, off what you burn in total - don't make workout days bigger deficit, unless you want less benefit from the exercise.

But that also means with smaller margin of error - logging needs to be right on.

Or you can assume your current level of eating is maintenance if you've been there awhile - and just find a real 250 cal to cut from the diet somewhere.

For the weights you mean circuit training style, small rests?
Because HIIT is actually aerobic cardio workouts done in interval fashion instead.
Weights is interval by necessity since you aren't really going to keep going for an hour at a time anyway.
HIIT term just misapplied since it's a fad now.

If you got for improving the logging, remember that MFP accounted for no workouts initially - when you do them log them and eat more correctly.
But the nature of some workouts could be inflated calorie burn some find from the database.
Any HR-based calorie burn will for sure be inflated with your described workouts.
So start at 75% of stated, log food accurately, and in a few weeks see where you are at.

keep doing cardio it does work, simply walking works for two reasons

1. you are not at home and therefor eating
2. it's low impact steady state

running is only better than walking because it burns twice the calories in half the time

1 mile walking burns 100 calories in 20 minutes (con = time consuming)
1 mile running burns 100 calories in 10 minutes (con = bad for your joints, too much pounding)

an elliptical is great because it is low impact, swimming is great also

there is no silver bullet there is no magic sauce and it doesn't matter what you eat as long as you eat less than you should you will loose weight, no one is forcing food in your mouth, I am not being rude, all medicine tastes bad, ha ha so I am not going to tell you what you want to hear (because I see you can get sheet done) but what you should hear, loosing weight is one thing, maintaining is another, you did part one, now focus on part two, no excuses of this or that happened, again none of those things are shoving food in your mouth, everyone has issues

cut calories by 300 each day and exercise cardio for 30 minutes a day, rinse, lather, repeat

if you want a cheat day, eat less the day before and eat less the day after, plan and execute, weight management is not all or nothing, each day we start over, forget the bad days and start over

and yes you are smokin' hot