My sister, and two friends bought Rangemaster range cookers, and all three are 'intensive' cooks. I was a bit critical when they bought them (the 'seemed' less well-built than the likes of Britannia etc)
But - All three have fared brilliantly! [forgot to say -they are now over 15yrs-old!!!!]
Get one with electric oven/gas hob(s). Side griddle is handy - as is plate-warming section.
If I was in the market for one - that's where my money would be going.