E: 40 E Midlands: 32 Ireland: 43 (4 in Connacht, 17 in Leinster, 8 in Munster, 14 in Ulster) London: 51 (31 north of Thames, 20 south of Thames) NE: 49 NW: 19 Scotland: 40 SE: 62 SW: 39 Wales: 23 W Midlands: 39 Yorkshire: 37 Others: 2 (Channel Islands, Isle of Man) 476 seats in total 239 seats needed for a majority
How do you think the 2017 GE would have ended up if this was the electoral system and these were the seats? What impact would preferential voting in seats with up to 3 members have on UK politics? How would the Scottish Islands seat vote?
What would entitlements be with 650 Seats across the British Isles?
I actually didn't start with regional allotment - I drew the seats in such a way so that as much local authorities would be kept whole as possible, and as little county boundaries as possible would be breached (owing to my high deviation - roughly +/- 15%, but some constituencies vary more from quota). I only counted seats by region later. That being said, under 650 members: The electorate for the Island of Great Britain is 43,319,071. The electorate for the island of Ireland is 3,305,110 (turnout in RoI general election 2016)+1,243,369 (NI electorate register); total is 4,548,479. Total is 47,867,550. 2 seats each for the Isle of Wight and the Channel Islands (both of which get two-member STV constituencies), 1 for the Isle of Man, and throw in Na h-Eileanan an Iar and Orkney and Shetland - that leaves 643 seats for the rest. Quota for the islands of Ireland and Great Britain - 74,444. Furthermore, that leaves 61 members for the island of Ireland. 5 for Connacht, 24 for Leinster (12 for County Dublin alone), 12 for Munster, and 20 for Ulster.
Reminder: deviation of +/-15% is permissible if one makes use of it to keep unitary authorities whole. But if a unitary authority is already split, then it is best to equalise to greater extent, unless some important reason exists not to do so. In any event, one ought to avoid crossing county boundaries.