AbuDhabi cost of living is almost same, if you minus the accomodation, transportation and food ;) .. sorry jst kidding ..

but for a simple comparison, a 3BR excellent apartment in Riyadh will cost you 35K/year, in Doha 80K/year and in AbuDhabi 200K/year.

1BHK in AbuDhabi will cost you well above 80K/yr.

Paid parking, traffic jams are common; if you like to party AbuDhabi is not the same in quantity or quality as Dubai.

bottom line; if you can secure a good accomodation near KCA.Musaffah and afford to spend approx 120+ min back&forth you'd do fine.

some even prefer to stay and dubai and commute daily to Abudhabi.

try to bargain as much as possible for accomodation allowance & children education. rest you should be fine with.

I don't know abt you, but I left a quite lucrative job offer from AbuDhabi to settle for a medium scale job in Doha, for personal reasons.

good luck