One to watch: Can the SDLP take a first nationalist seat in this constituency?

Profile: This is the constituency where the DUP is most exposed and there is an expectation that it will lose a seat. It accounts for three of the five MLAs at present - the only place where it holds more than two seats. But with the party down in the polls, it will struggle to hold onto the last of them. Its candidates include a former and the serving Stormont education minister, both of whom have a profile as a result of their ministerial service.

Their third candidate is a sitting MLA but who was co-opted during the last mandate and is less well-known. This is a target for the SDLP who are standing lawyer Conor Houston and it's considered to be the party's best chance of a gain. He is aiming to win a first nationalist seat in this constituency and has the backing of former Irish Rugby international Andrew Trimble.

Former television news presenter Mike Nesbitt is the lead candidate for the Ulster Unionists and should be re-elected alongside the sitting Alliance MLA.

The last seat should be a scrap between the DUP, SDLP and a second Alliance candidate hoping to benefit from a popular running mate and an uplift in the wider party vote.

But observers think Conor Houston will mount the biggest challenge for one of those three DUP seats.

2017 Assembly Election: DUP 3; UUP 1; Alliance 1

First preference vote share 2017:
DUP 39.9%
Ulster Unionist Party 20%
Alliance 15%
SDLP 7.9%
Sinn Féin 2.9%

Seats Available: 5

Number of candidates: 12


Kellie Armstrong, Alliance Party

Stephen Cooper, TUV

Harry Harvey, DUP

Conor Houston, SDLP

Ben King, Independent

Maurice Macartney, Green Party (NI)

Nick Mathison, Alliance Party

Róisé McGivern, Sinn Féin

Michelle McIlveen, DUP

Mike Nesbitt, UUP

Philip Smith, UUP

Peter Weir, DUP