no it is not. Have a look at the snow report, there you can see all levels. Highest mountain is next to Borovets, Mousala (means near to Allah) with nearly 3.000 metres.
Roland is right in the respect of the Mousala...
The highest skiing actually is in Bansko (pisted) at 2600 m whereas Boro can claim 2550m, only 50m in it but there we go.
If we were to discuss recent snow records then maybe Bansko would better Boro but who knows this season ??
Its looking good, lets hope for the tempertures keep low and the snow keeps coming.....
All hail the snow gods (wheres Hornster when you need him)