Skinny and spark are the same network.

Grain of salt given my workplace, however for me, data has three main factors.... Consistency, Speed and price. (in that order).

Year ago, i saw vodafone take the cake of the lot.

now, I'm pushing my Spark sim harder as generally i hold far less drops down to UTMS. Ontop of this, i tend to sit in solid LTE CA.

Nothing against Vodafones network, they still are king at my house and rural areas are one better than the other depending on region.

I have next to no issue hitting 180/40 on CAT6 (2CA) - Pretty sure my device should be able to do CAT9 (3CA) however i'm yet to see this - could be rom based as i'm not running a carrier rom etc...

vodafone however, I'm often sitting in the 30-50/20-30 range.

*Vodafone i test a little more heavily due to having far more plentiful amounts of data.