First off, congratulations..!! You are officially an MM legend, having 20 LE Elk points for two people and still not knowing where to put in for...
So, let's see. Best Early Rifle tags they would be guaranteed:
Book Cliffs/BitterCreek South, Book Cliffs Roadless, Dutton, and Boulder. There are quite a few "lesser" units you could draw with the Early Rifle tag. Fishlake saw several great bulls taken last year for example.
The San Juan has 9 Bonus Tags for Early Rifle. There are at least 13 people that put in with 20 points last year, meaning they have 21 points this year- so your family will not be in the bonus tags for that hunt.
The Monroe has 4 Bonus tags for Early Rifle. There are at least 17 other people that will be putting in this year with 20 points for that hunt (those who didn't draw last year with 19). So you would likely be in the bonus tag pool, and having 2 entries in that pool increases your odds of drawing 1 of them to somewhere around 40% I believe.
The Pahvant has 6 Bonus tags for Early Rifle. There are likely 8 people moving up from last year with 21 points now, so you would not be in the bonus tags for that unit.
The Beaver has 4 Bonus tags for Early Rifle. There are 11 people moving up from last year with 20 points now. So, your odds of drawing 1 tag there are better than the Monroe.
Now, let's talk Premium. This could be an exceptional year to have a Premium tag. It is looking like the Muzzy hunt will be better situated within the rut. With a Premium tag, you would get to chase bulls through both the Rifle and Muzzy hunts, likely for the entire duration of the rut. Luckily, with 20 points there are some Premium tags you'd be a lock to get:
Book Cliffs, Bitter Creek/South, Mt. Dutton, Fishlake, and there's always the Wasatch (Close to home).
If I had a wife and daughter with 20 points, I'd be putting in for the Premium tag in the Book Cliffs. I know the area well, have seen success by friends on both the Muzzy and Rifle hunts, and the access is almost unmatched by any other unit. While a true giant bull (360" or better) would be a tall order, they are there. 330" to 350" bulls are solid bulls for the unit. And with a premium tag, you have a lot of time to find a big one. (Or 2 big ones, if you did it that way.)
So there's my 2 cents. Good luck no matter what you decide on. And good luck to your wife and daughter. I hope they kill some great bulls, and you all make some awesome memories.
"Therefore, wo be unto him that is at ease in Zion!" 2 Ne. 28: 24